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Djvu file

Djvu file

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A small manual for download:
  • Click "Download Now" image upwards.
  • Here is the link Djvu file if the image doesnt shows
  • Then, after you click the image you'll go to the 100% protected site where your download will start shortly
  • The small window should appear. Click RUN, and thats all. Just follow the instructions of the installer.




















Use this free online DjVu to PDF converter to convert DjVu files to Adobe PDF documents, quickly and easily, without having to install any software.• Click the UPLOAD FILES button and select up to 20 DjVu files you wish to convert.• Wait for the conversion process to finish and download files either separately, using thumbnails, or grouped in a ZIP archive. DjVuLibre: Open Source DjVu library and viewer DjVuLibreFeaturesScreenshotsDownloadsDocumentationLicenseProject PageBrowse GitCreditsLinksDjView4GSDjVuJavaDjVuProject Page |Forums |Bugs |Support |Patches |News |Git |Files DjVu is a web-centric format and software platform for distributingdocuments and images.DjVu can advantageously replace PDF, PS, TIFF, JPEG, and GIF fordistributing scanned documents, digital documents, or high-resolutionpictures.DjVu content downloads faster, displays rjvu renders faster,looks nicer on a screen, and consume less client resources than competingformats.

DjVu images display djgu and can be smoothly zoomed andpanned with no lengthy re-rendering.DjVu is used by hundreds of academic,commercial, governmental, and non-commercial web sites around the world.DjVuLibre is an open source (GPL'ed) implementation of DjVu, includingviewers, browser plugins, decoders, simple encoders, and utilities.Download filw Latest VersionDjVuLibre includes a vile viewer,a browser plug-in (for Mozilla, Firefox, Konqueror, Netscape, Galeon, and Opera),and command line tools (decoders, encoders, utilities).DjVuLibre works under Unix with X11.Native plugins for MS Windowsand Mac OS X are freely availablefrom LizardTech Inc.The new portable viewerdjview4is available as a separate package. Latest Release:• version 3.5.27• released 2015-02-12.• Check out the full download page for previous versions.Source PackagesSource TAR.GZdjvulibre-3.5.27.tar.gzBinary PackagesFedora/RedhatAvailable from Fedora.SuseAvailable from OpenSuse.DebianAvailable from Debian (apt-get!)UbuntuAvailable from Ubuntu (apt-get!)OS/2 (x86)Available on HobbesWindows (x86)Available on SourceforgeMacOS (x86,ppc)Available on SourceforgeRelated ProjectsDjView4An improved DjVu viewer for (unix, windows, mac).JavaDjVuA Java class for viewing DjVu files without plugin.DjvuDigitalA Ghostscript based tool for converting PS or PDF files into DjVu files.See DjVu.org for more DjVu software.What is DjVu? DjVu (pronounced "déjà vu") a set of compression technologies,a file format, and a software platform for the delivery over the Web ofdigital documents, scanned documents, and high resolution images.DjVu documents download and display extremely quickly, and look exactlythe same on all platforms with no compatibility problems due to fonts,colors, etc.

DjVu can be seen as a superior alternative toPDF and PostScript for digital documents, to TIFF (and PDF) for scannedbitonal documents, to JPEG and JPEG2000 for photographs and pictures, and toGIF for large palettized images.

DjVu is the only Web format that ispractical for distributing high-resolution scanned documents in color.No other format comes close.Typical DjVu file sizes are as follows:• bitonal scanned documents: 5 to 30KB per page at 300dpi (3 to 10 ejvu smaller than PDF or TIFF)• color scanned documents: 30 to 100KB per page at 300dpi (5 to 10 times smaller than JPEG).• photos: 2 times smaller than JPEG, about the same as JPEG-2000, but the decoder/rendereris progressive and has minimal memory requirements.• palettized images: 2 times smaller than GIF (up to 10 times if it's mostly text).• digital (non scanned) documents: between 1 and 3 times smaller than PDF or gzipped PS(depending on the amount of pictures), but rendering, tile flipping, zooming, panningare incomparably faster, and the image quality on screen desplays is much better(antialiased text, etc).More importantly, all DjVu images render very quickly and can be smoothly zoomed and panned.Pages of a document can be turned instantly, with no annoying delay.DjVu is used by hundreds of academic,commercial, governmental, and non-commercial web sites around the world to distributescanned documents, digital documents, and high-resolution photos.A short technical description of DjVu is available here.Demos, and general information about DjVu can be found atDjVuZone.org,or at LizardTech.com.DjVu was originally developped atAT&T Labs-Research.In March 2000, AT&T sold DjVu toLizardTech Inc.

whonow distributes Windows/CE/Mac plug-ins, and commercial encoders.DjVuLibre is an open source implementation of DjVu. Seethe credits/history page for moredetails.What's inside DjVu?A short technical description of DjVu is available here.In short, DjVu is a multipage document format that can use a number of differentcoder/decoders (codecs) to compress the individual chunks that compose animages or a page.

In fact, Fiel is really four compression techniques wrapped into one format:• DjVuPhoto (aka IW44): A progressive, wavelet-based lossy compressionformat for continuous-tone images (i.e.

photos and pictures).• DjVuBitonal (aka JB2): A lossless or lossy compression techniquefor bitonal (black dvju white) or palettized images that is particularlyeffective on images with repeated shapes (such as documents imageswhere the same character appears many times in the document).• Sjvu A technique for scanned color document that separatesimages into a foreground layer that contains the text and line drawings,and a background layer cjvu contains the pictures and background textures.The foreground is encoded with DjVuBitonal and the Background with DjVuPhoto.• BZZ: A general-purpose data compression technique similar to bzip2.Bzz is used to compress searchable text layers and other metadatain DjVu documents.DjVu can be seen as nicely complementing PNGand MNG (which, unlike DjVu are lossless formats) in the areas of documentimage compression and djvi photo compression.

DjVuPhoto is a bit older, butsimilar in spirit to JPEG-2000. It is on a par with JPEG-2000 in terms ofimage quality and file size, but it compares favorably in terms of renderingtime and memory requirements. DjVuBitonal is better than MMR/GroupIV (used byPDF, TIFF, and most fax machines) by about a factor of 3 to 10. It is alsobetter than the emerging standard JBIG2 by about djgu is DjVuLibre?In an effort to promote DjVu as a Web standard, LizardTech's management wasenlightened enough to release the reference implementation of DjVu underthe GNU GPL in October 2000.

DjVuLibre (pronounced like theFrench "déjà vu libre", which means free DjVu), is anenhanced version of that code maintained by the original inventors of DjVu.It is compatible with version 3.5 of LizardTech's DjVu software suite.DjVuLibre includes:• A standalone DjVu viewer for Unix under X11 (based on the Qt library).• A browser plugin that works with most Unix browsers, including:Netscape-4.x, Netscape-6.x, Mozilla, Galeon, Konqueror, and Opera.• A full-fledged wavelet-based compressor for pictures.• A simple compressor for bitonal (black and white) scanned pages.• A very simple compressor for scanned color pages.• A compressor for palettized images (a la GIF/PNG).• A full set of utilities to manipulate and assemble DjVu images and documents.• A set of decoders to convert DjVu to a number of other formats.• An up-to-date version of the C++ DjVu Reference LibraryWindows and Mac versions of the viewer/plug-in, free Windowscompressors, and high-end commercial compressors and OCR engines areavailable from LizardTech Inc.The compressors provided here are slower, produce larger files (sometimeswith lower image quality) than the commercial compressors, but they do the job.For those who like quick solutions flie having to install software, avariety of free web-based conversion services are also available, includingAny2DjVu andBib2Web.DjVu Libre This article is about a computer file format.

For a computer-assisted translation software tool, see Déjà Vu flie. DjVuFilename extension.djvu. djvInternet media typeimage/vnd.djvu, image/x-djvuType codeDJVUDeveloped byAT&T Labs – ResearchInitial release1998 ; 18 years ago ( xjvu release Version 26 [1](June 2006 ; 10 years ago ( 2006-06))Type of dvju file formatsOpen format?GNU GPLv2 for DjVu Reference Library and Dmvu grants under the GNU GPL for several patents that cover aspects of the library [2]Websitewww .djvu .orgDjVu ( / ˌ d eɪ ʒ ɑː ˈ v uː/ DAY-zhah- VOO, [3] like French: déjà vu [deʒavy]) is a xjvu file format designed primarily to store scanned documents, especially those containing a combination of text, line drawings, indexed color images, and photographs.

It uses technologies such as image layer separation of text and background/images, progressive loading, arithmetic coding, and lossy compression for bitonal ( monochrome) images. This allows high-quality, readable images to be stored in a minimum of space, so that they can be made available on the web.DjVu has fiile promoted as an alternative to PDF, promising smaller files than PDF for most scanned documents.

[4] The DjVu developers report that color magazine pages compress to 40–70 kB, black-and-white technical papers compress to 15–40 kB, and ancient manuscripts compress to around 100 kB; a satisfactory JPEG image typically requires 500 kB. [5] Like PDF, DjVu can contain an OCR text layer, making it easy to perform copy and paste and text search operations.Free browser plug-ins and desktop viewers from different developers are available from the djvu.org website.

DjVu is supported by a number of multi-format document viewers and e-book reader software on Linux ( Okular, Evince) and Windows ( SumatraPDF). Contents• 1 History• 2 Technical overview• flle File structure• 2.1.1 Chunk types• 2.2 Compression• 3 Format licensing• 4 Support• 5 See also• 6 References• 7 External linksHistory [ edit ]The DjVu technology was originally developed [5] by Yann LeCun, Léon Bottou, Patrick Haffner, and Paul Howard at AT&T Labs from 1996 to 2001.Due to its declared higher compression ratio (and thus smaller file size) and the ease of converting large volumes of fie into DjVu format, and because it is an open file format, some independent technologists (such as Brewster Kahle [6]) have historically considered it superior to PDF.The DjVu library distributed as part of the open-source package DjVuLibre has become the reference implementation for the DjVu format.

DjVuLibre has been maintained and updated by the original developers of DjVu since cile. [7]The DjVu file format specification has gone through a number of revisions: Revision history Support statusVersionRelease dateNotesUnsupported1–19 [1]1996–1999Developmental versions by AT&T labs preceding the sale of the format to LizardTech.UnsupportedVersion 20 [1]April 1999DjVu version 3.

DjVu changed from a single-page format to a multipage format.Older, still supportedVersion 21 [1]September 1999Indirect storage format replaced.

The searchable text layer was added.Older, still supportedVersion 22 [1]April 2001Page orientation, color JB2UnsupportedVersion 23 [1]July 2002CID chunkUnsupportedVersion 24 [1]February 2003LTAnno chunkOlder, still supportedVersion 25 [1]May 2003NAVM chunk.

Support for DjVu bookmarks (outlines) was added. Changes made by Versions 23 and 24 were made obsolete.CurrentVersion 26 [1]April 2005Text/line annotationsTechnical overview [ edit ] File structure [ edit ]The DjVu file format is based on the Interchange Flle Format and is composed of hierarchically organized chunks.

The IFF structure is preceded by a 4-byte AT&T magic number. Following is a single FORM chunk with a secondary identifier of either DJVU or DJVM for a single-page djvuu a multi-page document, respectively. Chunk types [ edit ] Chunk identifierContained byDescriptionFORM:DJVUFORM:DJVMDescribes a single page.

Can either be at the root of a document and be a single-page document or referred to from a DIRM chunk.FORM:DJVMN/ADescribes a multi-page document. Is the document's root chunk.FORM:DJVIFORM:DJVMContains data shared by multiple pages.FORM:THUMFORM:DJVMContains thumbnails.INFOFORM:DJVUMust be the first chunk.

Describes the page width, height, format version, DPI, gamma, and rotation.DIRMFORM:DJVMMust be the first chunk. References other FORM chunks. These chunks can either follow this chunk inside the FORM:DJVM chunk or be contained in external files. These types of documents are referred to as bundled or indirect, respectively.NAVMFORM:DJVMIf present, must immediately follow the DIRM chunk. Contains a BZZ-compressed outline of the document.Compression [ edit ]DjVu divides a single djuv into many different images, then compresses them separately.

To create a DjVu file, the initial image is first separated into three images: a background image, a foreground image, and a mask image. The background and foreground images are typically lower-resolution color images (e.g., 100 dpi); the mask image is a high-resolution bilevel image (e.g., 300 dpi) and is typically where the text is stored.

The background and foreground images are then compressed using a wavelet-based compression algorithm named IW44. [5] The mask image is compressed using a method called JB2 (similar to JBIG2). The JB2 encoding method identifies nearly identical shapes on the page, such as multiple occurrences of a particular character in a given font, style, and size. It compresses the bitmap of each unique shape separately, and then encodes the locations where each shape appears on the page.

Thus, instead of compressing a letter "e" in a given font multiple times, it compresses the letter "e" once (as a compressed bit image) and then records every place on the page it occurs.Optionally, these shapes may be mapped to UTF-8 codes (either by hand or potentially by a text recognition system), and stored in the DjVu file. If this mapping exists, it is possible to select and copy text.Since JBIG2 was based on JB2, both compression methods have the same problems when performing lossy compression.

Numbers may be substituted with similar looking numbers (such as replacing 6 with 8) if the text was scanned at a low DPI prior to lossy compression. Format licensing [ edit ]DjVu is an open file format with patents. [4] The file format specification is published, as well as source code for the reference library. [4] The original authors distribute an open-source implementation named " DjVuLibre" under the GNU General Public License.

The rights to the commercial development of the encoding software have been transferred to different companies over the years, including AT&T Corporation, LizardTech, Celartem and Cuminas. Support [ edit ]SumatraPDF (Windows) among others can manipulate DjVu files.In 2002, the Dvju file format was chosen by the Internet Archive as a format in which its Million Book Project provides scanned public-domain books online (along with TIFF and PDF).

[8]Wikimedia Commons, a media repository used by Wikipedia among others, conditionally permits PDF and DjVu media files. [9] See also [ edit ]• JBIG2• Comparison of e-book formatsReferences [ edit ] • ^ a b c d e f g h i DjVu File Format Version, By Jim Rile, Posted: Fri Feb 23, 2007 1:08 am, PlanetDjVu• ^ "DjVu Licensing". DjVu Sourceforge page. Sourceforge.net. 2011-08-17. Retrieved 2011-09-21.• ^ "DjVu Technology".

Cuminas. Retrieved 2014-02-12.• ^ a b c "What is DjVu – DjVu.org". DjVu.org. Retrieved 2009-03-05.• ^ a b c Léon Bottou; Patrick Haffner; Paul Howard; Patrice Simard; Yoshua Bengio; Yann Le Cun (1998). "High Quality Document Image Compression with DjVu, 7(3):410–425" (PDF). Journal of Electronic Imaging.• ^ Brewster Kahle (December 16, 2004). "Universal Access to All Knowledge" (Audio; Speech at 1h:31m:20s).

Conversations Network.• ^ http://djvu.sourceforge.net/• ^ "Image file formDjVu (deja vu) is an open source file format currently maintained by Caminova. Because the format is not widely distributed, many users prefer to convert it to a popular format such as PDF when exchanging documents.

You will also need a DjVu reader/viewer (Internet Explorer is able to open these formats too) and a converter such as novaPDF. If you do not have novaPDF installed, use the Download page to download and install fike this page: Convert DjVu to PDF from Internet Explorer Video Tutorial Internet Explorer Convert DjVu to PDF using a separate DjVu Viewer Video Tutorial WinDjView Video Tutorial DjVuLibre PDF vs.

Cjvu (pronounced déja vu) is a file format originally developed by LizardTech and AT&T primarily to store scanned documents, especially those containing a combination of text, line drawings, and photographs. While in certain situations the size of a DjVu document is smaller than that of a PDF file (having the same contents), its main disadvantage is the low user base.

PDF on the other hand is so popular that most computers now have a PDF reader installed, thus if you need to share your content with others, PDF is the choice over DjVu. The default DjVu viewer won’t allow converting to the PDF format, thus a third party program (virtual PDF printer) has to be installed in order to do fiile conversion. novaPDF can easily convert DjVu files to PDF documents – once installed, simply press the Print button, choose novaPDF as the printer and your DjVu document will be converted to a PDF.Convert DjVu to PDF from Internet ExplorerDjVu can be opened in Internet Explorer directly by using the freeware browser plugin provided by Caminova.

This means it can be converted to PDF directly from IE by using novaPDF as the virtual printer.To convert DjVu to PDF from Internet Explorer:• Download and install the DjVu browser plugin from http://www.caminova.net/en/downloads/download.aspx?id=1• Download and install novaPDF on your computer using our Download page.• Double-click on the DjVu document (or in Internet explorer go to File->Open and select the DjVu file) you want converted to PDF.• Once opened, right-click on any page and select File->Print… (or click the toolbar Print button).• From the Printer section select novaPDF and click on OK.

You’ll be asked to choose a location and the PDF will be generated and saved once you click OK. Convert DjVu to PDF using a separate DjVu ViewerWinDjView and Djview are two open source readers for the DjVu file format.To convert DjVu to PDF from WinDjView:• Download WinDjView from http://windjview.sourceforge.net/ and novaPDF dmvu http://www.novapdf.com/download.html and install them both on your computer.• Go to File->Open (or press Ctrl+O), browse for the DjVu file you want to convert to PDF select it and click Open.• Go to File->Print (or press Ctrl+P) and from the Printer section choose novaPDF.

Before creating the PDF file you can customize novaPDF’s settings by using the Properties button and also adjust other printing options.• Click on Print and choose a location where you want the PDF document saved. To convert DjVu to PDF from DjVuLibre:• Download DjVuLibrefrom http://sourceforge.net/projects/djvu/files/DjVuLibre_Windows/ and novaPDF from http://www.novapdf.com/download.html and install both applications on your computer.• Go to File->Open (or press Ctrl+O), browse for the DjVu file you want converted to PDF select it and click Open.• Go to File->Print (or press Ctrl+P) and uncheck the option Print to file.

This will allow you to select a printer so click on Choose and pick novaPDF. In the Printing Options section you can customize the color, orientation and the scaling of the document.• Click OK and choose a location where you want the PDF file saved. PDF vs. DjVuBoth the DjVu and PDF formats define features that aim at creating a document delivery platform. The main difference between the DjVu and PDF is that DjVu is developed as raster image format, while PDF is developed as a vector image format.A consequence of this difference is that when a DjVu file is created, a maximal raster image resolution must be specified, djvu file the PDF vector image resolution can be magnified at arbitrary values without loss of data.

This means the quality of images in a DjVu document is lower than dvu a high resolution PDF file.DjVu format advantages:• Good compression – the filw can include a great amount of elements (graphics, colors, fonts, patterns) and still have a small size (but with a cost, as there is a loss of quality in converted images ).• Suitable for Electronic books – DjVu documents are viewed in a manner that is more user-friendly for people accustomed to reading eBooks.• Fast image rendering – when viewing the DjVu document, pages with images will open very fast because graphics are rendered in advance (cached).• Scanned documents conversion algorithm - for its main purpose, DjVu has a unique algorithm for converting scanned image and text elements.• DjVu is good as an archiving format for documents with graphics, manuals and scanned documents (as long as quality loss is not an issue).DjVu format disadvantages:• Image quality loss may occur when converting to DjVu from other formats.• Restricted usage – DjVu requires a license for commercial distribution so it has a very low user base in comparison with formats such as PDF.• Dependable - separate programs or plug-ins need to be installed for creating or reading the file.PDF format advantages:• Popularity – PDF is the most popular document format for sharing and storage, and a wide range of software solutions are available (free and commercial).• Security – It has the best security settings for keeping the document safe from unauthorized access.• Standardization – PDF has an ISO standard as an archiving and document sharing format (PDF/A)• Fidelity – the PDF conversion algorithm offers an optimum quality/size ratio, as it significantly compresses data (especially text) but without quality losses.

This is why PDF is widespread in the printing industry too, as it can produce press-quality documents that render content exactly as when printed on paper too.• Interactivity – PDF also offers support for sounds, interactive forms, multiple video formats compatible with Adobe Flash Player, online interactive reviews on documents, and JavaScript programs.PDF format disadvantages:• Dependence - requires installing separate programs for reading or creating the document.• Manageability – by its nature PDF is not meant to be an editable format as it is simply described as an image of dvju document.

Software that can edit PDF files does exist (an example would be Adobe Acrobat) but is expensive to purchase.• Compatibility – the PDF format complies with font licensing so commercial fonts will not be embedded in PDF documents and will look differently when the PDF is opened by other people.Taking into consideration the specific features of each format as well as its advantages, DjVu and PDF cannot be considered rival formats as they are designed for solving different tasks and therefore complementing each other.Applies to:• novaPDF Printer 1.x - 8.x• WinDjView v1.x+, DjVuLibre v4.x+, DjVu v6.x+ This article is about a computer file format.

For a computer-assisted translation software tool, see Déjà Vu (software). DjVuFilename extension.djvu. djvInternet media typeimage/vnd.djvu, image/x-djvuType codeDJVUDeveloped byAT&T Labs – ResearchInitial release1998 ; 18 years ago ( 1998)Latest release Version 26 [1](June 2006 ; 10 years ago ( 2006-06))Type of formatImage file formatsOpen format?GNU GPLv2 for DjVu Reference Library and DjVuLibre-3.5;License grants under the GNU GPL for several patents that cover aspects of the library [2]Websitewww .djvu .orgDjVu ( / ˌ d eɪ ʒ ɑː ˈ v uː/ DAY-zhah- VOO, [3] like French: déjà vu [deʒavy]) is a computer file format designed primarily to store scanned documents, especially those containing a combination of text, line drawings, indexed color images, and photographs.

It uses technologies such as image layer separation of text and background/images, progressive loading, arithmetic coding, and lossy compression for bitonal ( monochrome) images. This allows high-quality, readable images to be stored in a minimum of space, so that they can be made available on the web.DjVu has been promoted as an alternative to PDF, promising smaller files than PDF for most scanned documents.

[4] The DjVu developers report that color magazine pages compress to 40–70 kB, black-and-white technical papers compress to 15–40 kB, and ancient manuscripts compress to around 100 kB; a satisfactory JPEG image typically requires 500 kB. [5] Like PDF, DjVu can contain an OCR text layer, making it easy to perform copy and paste and text search operations.Free browser plug-ins and desktop viewers from different developers are available jdvu the djvu.org website.

DjVu is supported by a number of multi-format document viewers and e-book fipe software on Linux ( Okular, Evince) and Windows ( SumatraPDF). Contents• 1 History• 2 Technical overview• 2.1 File structure• 2.1.1 Chunk types• 2.2 Compression• 3 Format licensing• 4 Support• 5 See also• 6 References• 7 External linksHistory [ edit ]The DjVu technology was originally developed [5] vile Yann LeCun, Léon Bottou, Patrick Haffner, and Paul Howard at AT&T Labs from 1996 to 2001.Due to its declared higher compression ratio (and thus smaller file size) and the ease of converting large volumes of text into DjVu format, and because it is an open file format, some independent technologists (such as Brewster Kahle [6]) have historically considered it superior to PDF.The DjVu library distributed as part of the open-source package DjVuLibre has become the reference implementation for the DjVu format.

DjVuLibre has been maintained and updated by the original developers of DjVu since 2002. [7]The DjVu file format specification has gone through a number of revisions: Revision history Support statusVersionRelease dateNotesUnsupported1–19 [1]1996–1999Developmental versions by AT&T labs preceding the sale of the format to LizardTech.UnsupportedVersion ddjvu [1]April 1999DjVu version 3.

DjVu changed from a single-page format to a multipage format.Older, still supportedVersion 21 [1]September 1999Indirect storage format replaced. The searchable text layer was added.Older, still supportedVersion 22 [1]April 2001Page orientation, color JB2UnsupportedVersion 23 [1]July 2002CID chunkUnsupportedVersion 24 [1]February 2003LTAnno chunkOlder, still supportedVersion 25 [1]May 2003NAVM chunk. Support for DjVu bookmarks (outlines) was added. Changes made by Versions 23 and 24 were made obsolete.CurrentVersion 26 [1]April 2005Text/line annotationsTechnical overview [ edit ] File structure [ edit ]The DjVu file format is based on the Interchange File Format and is vjvu of hierarchically organized chunks.

The IFF structure is preceded by a 4-byte AT&T magic number. Following is a single FORM chunk with a secondary identifier of either DJVU or DJVM for a single-page or a multi-page document, respectively. Chunk types [ edit ] Chunk identifierContained byDescriptionFORM:DJVUFORM:DJVMDescribes a single page. Can either be at the root of a document and be a single-page document or referred to from a DIRM chunk.FORM:DJVMN/ADescribes a multi-page document.

Is the document's root chunk.FORM:DJVIFORM:DJVMContains data shared by multiple pages.FORM:THUMFORM:DJVMContains thumbnails.INFOFORM:DJVUMust be the first chunk. Describes the page width, height, format version, DPI, gamma, and rotation.DIRMFORM:DJVMMust be the first chunk. References other FORM chunks.

These chunks can either follow this chunk inside the Fjvu chunk or be contained in external files. These types of documents are referred to as bundled or indirect, fole present, must immediately follow the DIRM chunk.

Contains a BZZ-compressed outline of the document.Compression [ edit ]DjVu divides a single image into many different images, then compresses them separately. To create a DjVu file, the initial djgu is first separated into three images: a background image, a foreground image, and a mask image.

The background and foreground images are typically lower-resolution color images (e.g., 100 dpi); the mask image is a high-resolution bilevel image (e.g., 300 dpi) and is typically where the text is stored.

The background and foreground images are then compressed using a wavelet-based compression algorithm named IW44. [5] The mask image is compressed using a method called JB2 (similar to JBIG2). The JB2 encoding method identifies nearly identical shapes on the page, such as multiple occurrences of a particular character in a given font, style, and size.

It compresses the bitmap of each unique shape separately, and then encodes the locations where each shape appears on the page. Thus, instead of compressing a letter "e" in a given font multiple times, it compresses the letter "e" once (as a compressed bit image) and then records every place on the page it occurs.Optionally, these shapes gile be mapped to UTF-8 codes (either by hand or potentially by a text recognition system), and stored in the DjVu file.

If this mapping exists, it is possible fjle select and copy text.Since JBIG2 was based on JB2, both compression methods have the same problems when ejvu lossy compression. Numbers may be substituted with similar looking numbers (such as replacing 6 with 8) if the text was scanned at a low DPI prior to lossy compression. Format licensing [ edit ]DjVu is an open file format with patents. [4] The file format specification is published, as well as source code for the reference library.

[4] The original authors distribute an open-source implementation named " DjVuLibre" under the GNU General Public License. The rights to the commercial development of the encoding software have been transferred to different companies over the years, including AT&T Corporation, LizardTech, Celartem and Cuminas. Support [ edit ]SumatraPDF (Windows) among others can manipulate DjVu files.In 2002, the DjVu file format was chosen by the Internet Archive as a format in which its Million Book Project provides scanned public-domain books online (along with Djvu file and Vjvu.

[8]Wikimedia Commons, a media repository used by Wikipedia among others, conditionally permits PDF and DjVu media files. [9] See also [ edit ]• JBIG2• Comparison of e-book formatsReferences [ edit ] • ^ a b c d e f g h i DjVu File Format Version, By Jim Rile, Posted: Fri Feb 23, 2007 1:08 am, PlanetDjVu• ^ "DjVu Licensing".

DjVu Sourceforge page. Sourceforge.net. 2011-08-17. Retrieved 2011-09-21.• ^ "DjVu Technology". Cuminas. Retrieved 2014-02-12.• ^ a b c "What is DjVu – DjVu.org". DjVu.org. Retrieved 2009-03-05.• ^ a b c Léon Bottou; Patrick Haffner; Paul Howard; Patrice Simard; Yoshua Bengio; Yann Le Cun (1998). "High Quality Document Image Compression with DjVu, 7(3):410–425" (PDF).

Journal of Electronic Imaging.• ^ Brewster Kahle (December 16, 2004). "Universal Access to All Knowledge" (Audio; Speech at 1h:31m:20s). Conversations Network.• ^ http://djvu.sourceforge.net/• ^ "Image file formWelcome to the universal tool for converting DjVu to PDF.

Since it is an online conversion service you do not have to download and install software. Some features are:• Searchable PDF files: At the moment the only place in the web to produce searchable PDF files from DjVus• Small PDFs: There is a option for slim PDF files• DjVu to plain text: Extract plain text from your DjVu files for your ebook reader• Real time conversion: You can watch the progress of the job in realtime To get started just select a file and press "Convert!".

You can watch the conversion in real time then and download the result afterwards. This free online converter for DjVu and PDF files works in both directions:• Uploading a PDF file it will converted into a DjVu document• If you upload a DjVu file or ebook it will convert it to PDF onlineHow to use the converterThere are a few steps you need to follow in order to use this converter:1.

Upload your file2. Press “Convert”3. Watch the conversion process4. Download the resultConversion typesThis online converter works in two different ways:It can convert PDF files to DjVu filesIt can convert DjVu files or ebooks to PDF filesNew: You need to compress a PDF file? There are two ways: Either you just convert it to DjVu which behaves very similiar or use our new online tool for PDF Compression. As usual it works fast and free.

Enjoy!Online Ebook ConverterJust stumbled upon an ebook in the DjVu Fromat which you can not open? Our smart online ebook converter will convert it to PDF within few seconds. Like that you can easily enjoy your ebook on your favourite devices, like your Kindle.

There is no easier way! If you need to convert between other ebook formats just check out our links page.Online Ebook ConverterIf you have an ebook in DjVu format and it won’t open on your device, then you can easily solve this issue, converting your file into a PDF file.

For this, our converter is here to help you, offering you the opportunity to fast and easily enjoy your ebook on any of your desired devices, such as filw example Kindle. Also, you can check out our links page to find other conversions that are available.Your ebook has a differnt format?We offer you the chance to convert other ebook formats, as well.

For other formats, please check our links page: More Free Ebook Converters. PDF to DjVu ConverterOne of the reasons why it is worth it converting your file to DjVu format is that this format offers small and good-looking files.

When you convert PDF files to DjVu files, your ebook become more compact, offering you more space on your digital library. Converting files to DjVu format also enables you to share large documents.DjVu to PDF ConverterThis converter enables you to convert documents or ebooks that are in DjVu format to PDF format. PDF files load fast on devices, due to the features that are offered by ebook readers. Ddjvu can easily choose the best option for your ebook, by using the preview feature of this online converter.

After you choose the desired option for your document, you can start the conversion process, which usually takes less than one minute to complete. Depending on the file’s size, time may vary.DjVu to plain text converterThere are DjVu documents that dmvu hidden layer with OCR – Optical Character Recognition – information.

If you have such a document, you can easily extract plain text from it, duvu this online converter.Make searchable PDF filesIf your file is searchable, then you can convert it into a searchable PDF file. For this, you only need to check the box with the searchable option right after you upload your file to be converted. This enables you to enjoy an easy reading of your file, having the opportunity to use the search feature on the newly created PDF file.New conversion server and SSL EncryptionIn order to provide the best user experience to our customers, we are permanently working to our server’s development.

Our latest upgrade offers you the following advantages:• High fkle and download speed• Smooth operation• SSL encryptionFor the convenience fike our customers, we now offer secured connection to our server. Our online converter supports SSL encryption, thus you can now benefit of secured conversion.

In order to enjoy the benefits of the SSL encryption, you can visit us https://www.djvu-pdf.com or click here.Top benefits of using this online converterThere are plenty of benefits for using this online converter for your files, from which we mention:• It is completely free to use• No registration is required• No need to download• No install is required• Fast and easy to useWith all of its benefits, this online converter is the best choice for you whenever you need to convert your files.

Upload your ebook and watch in real time as it is being converted to your desired file type. In less than one minute, you can start enjoying your file on any device that supports the converted file type.The converter works in two directions, so that you can now convert DjVu files to PDF files or Dvu files to DjVu files from the same converter, without any downloads and installations on your operating system.

Try it now and let us know what you think!What our clients think: "VERY GOOD PROGRAM, Fille GREAT, THANK YOU.", "Thx 4 all!!, u´ve just saved sjvu life. THX!", "The conversion speeds are great! Looking forward for searchable PDFs :DKeep it real!

;)", "I'm quite impressed with this converter. I've used it a few times and always works well and in good time. As a student, I'm always happy to see such duvu applications that don't cost a penny. Thank you very much.","It solves a big problem for me, thank you very much!".We djvu file sure you will enjoy the experience using our converter. Our feedback is very important for us to improve our service. Let us know what you think! The internet grew to a considerable worldwide energy consumer during the last years.

According to recent estimations it is responsible for annual emissions of the greenhouse gas CO2 which are already comparable to those of the worldwide air traffic.

Running web servers by renewable energy helps to reduce the CO2 emissions of the internet. The energy for this server comes from renewable energy sources, mainly hydro-electric power, which neither produce any CO2 emissions nor nuclear waste.[close] File extension.djvuCategoryDocument FileDescriptionDjVu was initially developed by AT&T and is used as an image compression technology that is an open sourced alternative to PDF. It allows for scanned documents, photographs and very high resolution images to be distributed via the internet.

There are a whole host of DjVu viewers, browser plugins, encoders and decoders available on both Mac cile Windows.ActionsDJVU to PDF - Convert file now View other document file formatsTechnical DetailsDjVu was initially developed by Yann LeCun, L�on Bottou, Patrick Haffner, and Paul Howard at AT&T Labs from 1996 to 2001.

It promises smaller files sizes than standard PDF's and is therefore perceived to be superior to PDF's primarily due to it's higher compression ratio. DjVu files are typically seperated into three images - the background and foreground (around 100 dpi) and the mask image which is higher resolution (e.g.

300 dpi). The background and foreground images are compressed using an algorithm named IW44 with the mask image compressed using JB2. Ultimately this results in dramatically reduced file sizes.Associated programsDjVuLibre DjView LizardTech Browser Plug In MacDjView Desktop Viewer WinDjViewDeveloped byAT&T Labs - ResearchMIME typeimage/vnd.djvu image/x-djvuUseful linksDJVU.org Ffile DJVU file information Convert DJVU file Convert DJVU fileUsing Zamzar it is possible to convert DJVU files to a variety of other formats:djvu to bmp (Windows bitmap) djvu to gif (Compuserve graphics interchange) djvu to jpg (JPEG compliant image) djvu to pcx (Paintbrush Bitmap Image) djvu to pdf (Portable Document Format) djvu to png (Portable Network Graphic) djvu to tga (Truevision Targa Graphic) djvu to tiff (Tagged image file format) djvu to wbmp (Wireless Bitmap File Format)DJVU to PDF - Convert file nowEnglish | Français | Español | Italiano | Pyccĸий | Deutsch File extension.pdfCategoryDocument FileDescriptionPDF is a file format developed by Adobe Systems for representing documents in a manner that is separate from the original operating system, application or hardware from where it was originally created.

A PDF file can be any length, contain any number of fonts and images and is designed to enable the creation and transfer of printer-ready output.ActionsDJVU to PDF - Convert file now View other document file formatsTechnical DetailsEach PDF duvu encapsulates a complete description of a 2D document (and, with the advent of Acrobat 3D, embedded 3D documents) that includes the text, fonts, images and 2D vector graphics that compose the document. They do not encode information that is specific to the application software, hardware, or operating system used to create or view the document.Associated programsAdobe Viewer Ghostscript Ghostview Xpdf gile byAdobe SystemsMIME typeapplication/pdfUseful linksAdobe Reader (to view) Adobe Acrobat (to edit) Convert PDF file PC Support• Computer Troubleshooting Guides for Common Errors and Symptoms• How-To's & Tutorials• Getting Support: Tech Support & Computer Fild Help• Software Tools for Testing, Monitoring, and Fixing Computers• Testing and Benchmarking Tools and Programs• Command Line Reference• Parts of a Computer [Resources, Walkthroughs, & More]• Computer Cleaning and Cooling Resources• List of File Extensions• Things You Didn't Know About.• Computer Terms• Other Resources UpdatedJune 16, 2016.Developed by AT&T Labs, a file with the DJVU file extension (a DjVu file, pronounced as déjà vu) is a graphics file format intended for scanned images, kind of like the PDF format, which you're probably more familiar with.Since a DJVU file can contain compressed, yet high quality color images, photographs, text, and drawings, it's used as the format for some eBooks, as well as manuals, newspapers, ancient documents, etc.that have been scanned to a computer.DjVu files can use the .DJVU or the .DJV file extension.

How To Open a DJVU FileThe free Sumatra PDF program is probably the quickest and easiest way to open DJVU files. It can also save an open DJVU file to a TXT file for easy reading without any graphics.DjVu.org has a list of some other programs that open DJVU files, like DjVuLibre for Mac and Windows. Okular and Evince are two options for opening DJVU files on Linux.DocsPal is an online DJVU viewer which is useful if you don't want to install a dedicated viewer to your computer.

Using an online tool also means that you can open the file much faster, as well as view the file regardless of your operating system. The converter portion of this website can save the uploaded DJVU file to EPS, Vjvu, and a few other vjvu. How To Convert a DJVU FileDJVU files definitely aren't as widely used as similar formats like PDF, EPUB, MOBI, and other eBook file formats. Because of this, you may find yourself wanting to convert the DJVU file you have to something more recognizable and widely supported by computers, mobile djvu file, and ereaders.DjVu2PDF.com and ConvertOnlineFree.com are two online DJVU converter for Windows, Mac, Linux, etc., that provide a quick option to convert DJVU to PDF.Another free online file converter that's great for smaller DJVU files is Zamzar.

Just upload the DJVU file to this website to convert it to JPG, BMP, GIF, PNG, TIF, or some other similar image formats. Aside from online DJVU converters there are, of course, downloadable and installable converters like Calibre.

This particular program can convert DJVU to EPUB, MOBI, AZW3, DOCX, PDB, FB2, LRF, and more.Note: Calibre can convert a DJVU file only if it contains embedded text, like if it rjvu created using OCR software. Image-only DJVU files aren't supported.Another example of a downloadable DJVU converter is one called DjVu Converter, which can ddjvu DJVU to PNG, JPG, EPUB, PDF, and TIFF. With this program, you don't have to convert all the pages if you don't want some of them to be included in the final file.

For example, you can choose to convert just pages 10-25, or only pages 5 and 12, to essentially cut out every other page. There's also an option to define the image quality/compression rate.Also remember that Sumatra PDF and DocsPal, mentioned above, can convert DJVU files as well.

More Information on DJVU FilesDjVu files are able to separate images into different pieces and compress each of them separately from the other parts, which is how they can be compressed as high as they are but still allow for superior quality images.Since DJVU files can separate images and text into different layers, it means one layer can be used just for holding OCR text, letting you search for and copy text out of the file.

More Help With DJVU FilesSee Get More Help for information about contacting me on social networks or via email, posting on tech support forums, and more. Let me know what sorts of problems you're having with your DJVU/DJV file, as well as what tools you've already tried to open the file or convert it with. Related Articles• What's an XVO File and How Do You Open One?• What's a BRSTM File and How Do You Open One?• File Extensions: Everything You Need to Know• What's a JOBOPTIONS File and Fiile Do You Open One?• What's an XLAM File and How Do You Open One?• What's a SEARCH-MS File and How Do You Open One? Our Expert Recommends• How to Convert a File to Another Format• What is a PDF File?• What is an EPUB File?• What is a MOBI File?• What is an FB2 File?• What is a CBR Fi,e What is a File Extension?• Change a File Extension's Default Program• List of Executable File Extensions Readers Recommend• What to Do When Windows Update Gets Stuck• 11 Free Programs That Will Help Update Drivers in Windows• What's an XVO File and How Do You Fipe One?• Free and Public DNS Servers• 21 Command Prompt Tricks & Hacks •TourStart here for a quick overview of the site•Help CenterDetailed answers to any questions djvu file might have•MetaDiscuss the workings and policies of this site•About UsLearn more about Stack Overflow the company•BusinessLearn more about hiring developers or posting ads with us I have downloaded file which is in djvu format.

I want to fiile it to pdf or some other more common format, so I can read the document from other devices (e.g. my phone etc).I found a conversion utility at Lizardtech, but when I converted the doc using the lizardtech software, every page had a watermark - which rendered the converted doc virtually useless.Does anyone know where I can get a free conversion utility that does not watermark the converted doc? This is the easiest and best solution.

Very fast, and it's possible to tweak the conversion (i.e. change the resolution by specifying the DPI, or the quality of the JPEG conversion).– Jess Riedel Oct gile '14 at 17:31 Short Solution http://0x2a.at/s/projects/djvu2pdfFor those interested or for those that like using the terminal on a MacI recently asked this question when I found a strange file on my computer whilst trying to come up with the answer to the same question posed by this thread.First, install homebrew through the terminal with thisruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)"And then install djvu2pdf, which, by the way, has almost no documentation but works like a charm.brew install djvu2pdfThen, navigate to the directory where my .djvu file is stored, and run this command:djvu2pdf [somebook.djvu]Since most textbooks have really long names that have spaces in between them, just enter a little bit of the name (enough to make it so there is only one file in the directory that starts with the current string) and then press tab.It takes a while, how long I didn't figure out, but definitely not more than half an hour, and it will place djvk new file in the directory that is a pdf version of the .djvu file.This is the only method I've found to work. Convert DjVu to PDF from Internet Djgu can convert DjVu documents to PDFfiles directly from Internet Explorerusing the open source DjVu viewerbrowser plugin.To convert DjVu to PDF from InternetExplorer:• Download and install the DjVu browser plugin fromcelartem.com/en/download/djvu.asp• Double-click on the DjVu document (or in Internet explorer goto File->Open and select the DjVufile) you want converted to PDF• Once opened, right-click on any page and select File->Print… (or clickthe toolbar Print button).• From the Printer section select novaPDF and click on OK.

You’ll beasked to choose a location and the PDFwill be generated and saved once youclick OKConvert DjVu to PDF using a separate DjVu ViewerWinDjView and Djview are two opensource readers for the DjVu fileformat.To convert DjVu to PDF from WinDjView:• Go to File->Open (or press Ctrl+O), browse for the DjVu file youwant to convert to PDF select it andclick Open• Go to File->Print (or press Ctrl+P) and from the Printer sectionchoose novaPDF. Before creating fule file you can customize novaPDF’ssettings by using the Propertiesbutton and also adjust other printingoptions• Click on Print and choose a location where you want the PDFdocument savedTo convert DjVu to PDF from DjView:• Go to File->Open (or press Ctrl+O), browse for the DjVu file youwant converted to PDF select it andclick Open• Go to File->Print (or press Ctrl+P) and from the Printer namechoose novaPDF.

In the PrintingOptions section you can customize thecolor, orientation and the scaling ofthe document• Click OK and choose a location where you want the PDF file savedSorry I ended up copy pasting evrything from this site http://www.novapdf.com/kb/convert-djvu-to-pdf-215.html Wikipedia commons page on Help:Creating a DjVu file has notes on working with DjVu fi,e, the djvu sourceforge page has fle open-source tool reference.DjVu (pronounced "déjà djvvu a set of compression technologies, a file format, and a software platform for the delivery over the Web of digital documents, scanned documents, and high resolution images.Converting DjVu to PDF (for general reference, you seem to have already checked it):• Download and install Universal Document Converter software onto your computer.• Install DjVu Browser Plugin for Internet Explorer from the Lizardtech site.• Open the DjVu file in Internet Explorer and press the Print button in the DjVu Browser Plugin toolbar• Select Universal Document Converter from the list of printers and press the Properties button.• On the settings panel, click Gile Properties.• Use the Open dialog to select " Text document to PDF.xml" and click Open.• Press OK in dhvu Lizardtech plugin Print dialog to start converting.

When the PDF file is ready, it will be saved to the ' My DocumentsUDC Ddjvu Files' folder by default• The converted document will then be opened in Adobe Acrobat or another viewer associated with PDF files on your computer.Alternately, look at the standalone viewer for DjVu files, DjView4,or investigate the DjVu sourceforge page for a suitable tool. protected by Community ♦ Jun 15 '15 at 8:18Thank you for your interest in this question.Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site (the association bonus does not count).Would you like to answer one of these unanswered questions instead?Not the answer you're looking for?

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