Open deja vu. DjVu Reader free download, DjVu how to open

Hello, dear readers of the blog site. You've probably come across scanned images on the Internet. books in Djvu format(their files have the same extension).

Usually, it is not fiction that is distributed online in this way, but books containing drawings, graphs, formulas and other things that are quite difficult to convert into digital format using text recognition programs.

At first, I thought that this strange djvu() format was an ordinary set of raster images (photos) that were the result of scanning a book. But in this case the file size would be very large, and we do not observe this.

What is a file with such a mysterious extension and how can you open it to start reading the information contained in “déjà vu”, and what programs are best to use. I will try to answer all these questions in this article.

What is a Djvu file?

It turns out that djvu was developed about fifteen years ago and is a very successful mixture of test and graphic formats. In principle, when digitizing books, two scenarios are possible:

Perform text recognition on a scanned page and save it using compression algorithms, which allows you to get a very small weight of the final file. The downside is that you lose images, backgrounds, marginal notes, dog-ears, and other things that may be important in some cases. But it will be possible to conduct a full search using recognized texts.
You can save scanned texts as pictures, for which these or tiff are suitable. However, the weight of even one scanned page will be prohibitively high if we want to maintain quality. Well, it will be impossible to search through texts.

Djvu combines the advantages of the methods described above, while having virtually no disadvantages. Format Deja vu can be classified as text-graphic, which in itself already sounds unusual, but it promises a lot of dividends. Judge for yourself:

The original scanned image is compressed in Djvu ten times more tightly than it would be using JPEG, and its quality remains virtually unchanged. At the same time, jpeg will definitely blur the text, graphics, and everything that is possible, and our hero will leave everything in its original form.
An A4 sheet, scanned and converted to déjà vu, will weigh around 50 kilobytes (read about that) if the source had color graphics (or background), and around 10 kilobytes if it was black and white. Brilliant, and this is taking into account the fact that the scanning was carried out in a high resolution of 300 DPI. The same file saved in tiff format (without loss of quality) would weigh several hundred times more.
The Djvu file contains a text layer through which you can conduct a full search, and if you wish, you can leave only it (removing the color mask and background information), which will further reduce the size.

All this is achieved thanks to a rather original approach. I could be wrong, but in my opinion it is as follows:

Separate the page text and its background. The algorithm monitors many factors and, with the right settings, can even rip out the text component from the cover of a magazine, where words can also be used as a background.
The text is saved in a one-bit version (black and white) and is compressed quite tightly.
The background is saved separately and compressed a little less efficiently.
Information about the color of the text and illustrations used in the book is also compressed, but using a different algorithm.
As I already mentioned, the Djvu format provides a separate text field, thanks to which you can search through scanned books.

But the questions of creation and principles of data formation in déjà vu files are of interest to us insofar as, and it will be much more interesting to find out how they can be open and read Djvu.

Naturally, special reading programs (readers) are used for this purpose, which are available for both computers and mobile devices based on Android or iOS (ipad, iPhone). It’s convenient, after all, on the way home or to work to increase your level of education by reading a smart book on your mobile phone.

How to open Djvu - reading programs on a computer

There are several programs that are focused on working only with déjà vu files, but there are a number of universal solutions that allow you to read books in almost any form. There are also Djvu editors that allow you to edit or even create your own masterpieces.

Among Deja Vu readers intended for computers, it is worth highlighting the following readers:

It fully supports the Russian language and even managed to be captured by the “great and terrible” Yandex, forcing you almost by force and default search in all your browsers:

In general, they make it possible to abandon all this wealth (including), but not everyone pays attention to this when installing the program. Of course, with the same one it all looks even more intrusive, but the leading Runet search engine has also already filled all the free programs with its add-ons to the point of “don’t play around.”

As I already mentioned, Djvu can have a text layer embedded, so when reading books containing it, you can search by words and phrases.

On the left, WinDjView has a navigator with page thumbnails, and at the top there is a toolbar where you can open a new file, change the scale and type of display of pages (endless feed or imitation of a book spread), and also rotate them, if necessary, at an angle multiple of 90 degrees.

What’s noteworthy is that this deja vu reader opens new books in new tabs, which allows you to work with several materials at once in one program window. There is also the ability to make bookmarks and leave comments (from the right-click context menu). You can use a screen magnifier from the toolbar and full-screen viewing mode (in this case, you can turn pages with a simple mouse click).

If you select “File” - “Settings” from the WinDjView program menu, then on the second tab you can set the inversion of colors (for example, in order to read white text on a black background), as well as adjust the brightness, contrast or gamma for better perception of the document in Djvu format.

At the beginning of the article, I mentioned that in déjà vu, the scanned document is broken down into a black and white text component, a background, and foreground color information. So, in WinDjView all this can be clearly seen by selecting “view” - “mode” from the menu.

The latest current version dates back to 2005 (version 2.0.0.26) and its compatibility with modern operating systems is not guaranteed, although it still works on my Windows Vista, although not as quickly as its modern counterpart described just above. It does not require installation and works directly from the folder where you unpacked the archive with the program.

During installation, you need to check the box that you will not use this reader for commercial purposes, so as not to pay for the program.

Well, STDU Viewer will also ask you which file extensions you would like to associate it with, except for deja vu.

In principle, there is nothing so global in this reader that would not be in WinDjView, but... Firstly, it’s captivating a huge number of formats, which can be opened and read using this program.

Secondly, a very convenient and thoughtful interface.

Almost all of the reader’s functionality is displayed in the form of toolbars located around the entire perimeter of the program window. The place where thumbnails of the pages of the book you are reading are usually displayed, has as many as six tabs located at the bottom.

Not all of them apply to Djvu, but still. The same bookmarks, which can be designed in the form of a tree, can easily replace the missing navigation in your reference book or reference book.

The brightness and contrast settings are also displayed as an icon in the lower right corner, where there are also buttons for switching the document display mode.

Thirdly, there are some nice functional delights that will help during daily work with STDU Viewer:

Well, fourthly, there is a huge number of settings that can be made in STDU Viewer so that this reader is fully suited to your habits and needs.

For example, you can customize (File - Program Settings) even the appearance of the tabs, which, of course, is a trifle, but quite pleasant:

Djvu readers for Android and iOS (iPad and iPhone)

For some reason, I mostly manage to read books on the road, but there are always a lot of other, more important and interesting things to do. In this regard, I was faced with the task of downloading some suitable déjà vu reader for my beloved iPad, received as a gift from Profit Partner, but also in addition to everything - for an Android phone.

At the same time, I try to try all the free options for programs and applications before coming to the conclusion that I have no other option but to part with my hard-earned money. Actually, the main candidates for the place of Djvu are e-readers for iOS on the Internet. DjVU Book Reader.

Everything seems to be fine, both reviews and screenshots, but they are asking for it, albeit a small, but still a sum of money (169 rubles). I thought that this software was a bit of a mess, so I entered the word Djvu in the search bar in the Apple Store and asked to filter only free applications.

After testing to open various files in déjà vu format and assessing ease of use and functionality, a clear leader emerged among free programs for iPad - KyBook.

The software is unique, in my opinion, because while it is free, it fully supports EPUB, FB2, PDF, DJVU, CBR, CBZ and audiobooks in MP3, M4A, M4B formats.

When reading, the pages turn beautifully (the animation can be customized), there are a lot of settings and functionality, such as creating bookmarks, leaving notes, searching through the contents of the book, etc. things that are accessible from the top toolbar.

The KyBook reader has unexpectedly many settings:

Including there is a separate group of settings for this reader for PDF and DJVU formats:

In the library of this reader, you can sort books, create shelves for them, move files between them, rename them, and do everything that is usually required from such programs.

In addition, it is possible to use your existing applications for working with cloud storage systems such as , or Google Drive.

True, by providing access to your files in Dropbox and other clouds, KyBook warns you that it can even change them, which I personally don’t really like.

So I Djvu files are thrown into the Dropbox folder on the computer (via Wi-Fi), after which I open the application of the same name on the iPad and add them to my favorites, so that they are not later pulled over the mobile Internet, which is not always fast and also limited.

It seems to me that it will be safer this way.

Now it’s time to move on to the question of how to open Djvu on Android. The Internet told me that the best options are two free applications, which I still use today, because I didn’t have any particular complaints about their work, but just in case I left both of them in case some kind of twisted deja vu file opens one of them can not.

So, I present to you deja vu readers for Android:

Good luck to you! See you soon on the pages of the blog site

You can watch more videos by going to

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DjVu Reader free download, DjVu how to open

In French, the phrase “deja vu” means “already seen.” This is the name for the technology for compressing scanned images, necessary for distributing and storing complex documents with a large amount of text, formulas, drawings, diagrams or photographs. The resulting files are designated by the appropriate format, sometimes called text-graphic. But if the file extension occurs DjVu, how to open information found? The Deja Vu Reader application has been developed especially for this - a simple and convenient “reader”. At the bottom of our page there is a link that can quickly be sent to your computer.

Characteristics and main features of the Deja Vu program:

free viewing and reading of any documents in DjVu format;
setting page parameters - brightness, color, contrast of text and pictures;
four viewing methods - page by page or in the form of an album, book, booklet;
options for full screen mode and normal program window;
great scaling capabilities (changes from 20 to 400%);
function of loading several files at once;
support for hotkeys and tab navigation;
the ability to copy a page to the clipboard;
Go to any page of an open document.

The reading program is equipped with a status bar that displays the number, opening time, image resolution, and a convenient thumbnail display bar in page numbering order (on the left side of the window). Smaller copies of pages allow you to see the structure of the entire document, and with the help of thumbnails you can quickly switch to any page. The preview block can be hidden or its configuration can be changed in a way that is convenient for the user. The Deja Vu program is completely keyboard controlled, so it is usually recommended download DjVu Reader for laptop, so that you can easily use the reader on the road, on vacation, etc.

Text or an image that needs to be saved or moved to another medium can be exported to a common graphics format or the text layer can be copied. The DjVu Reader program has been widely and successfully used for more than seven years, and the developers no longer support this “deserved” version. However, the ease of operation of the reader, the interface is very clear to any beginner and the fact that the widespread formatDjVu has not yet lost its relevance, this application can be considered quite in demand.

DjVuReader download free

Download Deja Vu Reader for free Russian version for computer. Our website monitors all program updates so that you have the latest version of DjVuReader.

Hello. DjVu(translated from the language of love, i.e. from French - “already seen”) is an image compression technology designed specifically for storing scanned documents, such as magazines, books, manuscripts, instructions... The main advantage of this format is that what document is in DjVu It turns out to be three times smaller in size compared to PDF. For example, a magazine in PDF “weighs” 90 MB, but in DjVu it is only 30 MB - feel the difference, as they say.

And this is without loss of quality, by the way. And also, if you view documents in this format directly from the Internet, it is loaded gradually as you read it - there is no need to wait for the full download, the speed and convenience increases.

But the thing is that this wonderful document storage format is not so widespread and many users do not know about it at all, they do not know how to open and read a document in DjVu format. Some even mistake a downloaded file in this format for a virus and delete it immediately. 😯 But all you need is DjVu reader format. It is this, or rather such programs, that we will talk about today.

There are many such special programs, moreover, some PDF readers support this format, but we will talk about these monsters some other time, and today we will get acquainted with two light and fast DjVu format viewers - WinDjView And DjVuReader. The first is more sophisticated, and the second is small, portable, but in English and with less functionality, nevertheless it is also cool and has the right to recommend it.

DjVu reader

Installation and description of WinDjView

Here attention is paid to the machinations of enemies. Put an end to it and uncheck the boxes - “why do we need a blacksmith, we don’t need a blacksmith!”

And we meet the main window of the program WinDjView…

Now we need, in fact, the file itself in DjVu format. For example, I downloaded a wonderful magazine from my troubled childhood - Murzilka. There was a magazine, they don’t make stuff like that anymore, they’re good. Let's move on...

If you also have a file of such an incomprehensible type, let’s make an association of this format with the program so that the appearance becomes like this...

...and it opened immediately in our program by default, with one click. RIGHT click on the file and...

Now everything is fine - we received...

I hope you know how to maximize program windows to full screen, if not, then here’s a great one for you tutorial on the basics of working on a computer.

I advise you to immediately turn on the “width” view - it is more convenient for viewing documents.

In the left sidebar you can quickly find the page you need...

All unnecessary elements and panels that you don’t need can be disabled or enabled in the “view” menu item...

Well, a few program settings are hidden in...

That's all WinDjView.

DjVuReader

It's even easier here. There is no need to install anything - just open the folder and click on...

The program can be downloaded for free from our website

It can rightfully be called one of the most popular programs for reading files in the DjVu format. WinDjVu is free and distributed on an "As-Is" basis, that is, "as is". There are several options for , so, you can find either one program file and run it without installation, or there are different assemblies. WinDjVu assemblies differ from just a program file in that they copy all the necessary files into the “Program Files” folder and set up associations for the files.

If you downloaded WinDjVu from the proposed assembly, then by default the English language is activated in it; to switch WinDjVu to Russian, go to the View-Languages menu and select Russian. Immediately, without restarting, WinDjVu will display all labels in Russian.

WinDjVu has a high speed of displaying djvu in Russian, opening books is fast, has a simple interface and does not take up much space. Unlike WinDjVu, it has a larger set of functions, and as already mentioned, windjview displays faster djvu file, which can be noticeable with large .djvu file sizes. In general, windjvu is a simple and lightweight program, there are not very many features, but there is nothing superfluous. It works quite quickly, there are no negative sensations during operation. Again, there are no options for customizing the interface, and the very appearance of windjview is spartan, which does not prevent it from being used for its intended purpose - reading books. Displaying and scrolling works flawlessly, also, the program is stable and there are no freezes or crashes of the windjview program.

Among the convenient features, it is worth noting searching through the text of a document (works only for documents where text recognition has been performed), remembering the open page - that is, you can return to reading where you left off. An interactive table of contents allows you to quickly navigate to the desired part of the book. Viewing the book is available both as a regular feed and in two-page or full-screen mode.

In addition to the usual functions for dragging a document to increase the transition to the desired page, rotate, print and others, WinDjVu has a number of useful and convenient features. The “Select Area” document viewing mode allows you to select any part of the document and save it as a graphic file, for example jpg.

Also, the ability of the WinDjVu program to place a bookmark anywhere and on any page of the document may be useful. By analogy with a regular book, you place bookmarks in the right places and then you can return to the marked place.

Version 2.1 added the ability to export books to other formats, such as pictures. The ability to view in full screen mode, document annotation and many other improvements. The appearance has also become much nicer.

Program for djvu in Russian

Hi all! If you often download e-books and manuals on the Internet, then you have probably already come across such an e-book format as djvu. As a rule, many people immediately have the question of how to open djvu. It would seem that a regular PDF file viewer should be suitable for these purposes, but not everything is so simple. To view déjà vu files, you need special programs that can work with this format. In most cases, such e-books contain graphs, formulas and drawings that are very difficult to convert to another format for editing. I would like to note that this format was developed quite a long time ago, about 15 years ago, and managed to gain great popularity. E-books in the deja vu format contain both graphic images and text and are very light in weight.

Before we figure out how to open djvu, let's take a little look at the advantages of this file format. As a rule, the most important advantage is that the files are very light in weight, while the quality remains high.

What we get:

An image scanned into the Djvu format is compressed 10 times more than the popular . And the most important advantage is that the scanned document will be of impeccable quality without any blurring or loss;
Saved in déjà vu format, the scanned color document will weigh approximately 50 KB. And if the paper medium contained only text and a black and white image, then its electronic version will weigh approximately 10 KB. If you scan the same document and save it in another format, for example, Jpeg or tiff, then the weight of the electronic document will be tens or even hundreds of times greater;
Unlike, in a book in Djvu format it is possible to conduct a full search, thanks to a special text layer. Moreover, if the book contains some kind of background, you can remove it if desired.

As you can see, this e-book format has many advantages, but this was more informational information, since now our task is a little different.

How to open djvu on a computer.

There are not many programs that can work with Djvu files, but there are also universal solutions that can open files of almost any e-book. There are also editor programs that allow you to make changes to déjà vu files, as well as create your own books.

WinDjView

Many users have this program in their arsenal, as it has proven itself only on the positive side.

You can download the program from the official website of the developer - ru.windjvu.com

The program has a Russian interface. By the way, when installing WinDjView, the Yandex search engine offers to install its elements, as well as . Here you can refuse such an intrusive offer by unchecking the appropriate boxes.

The main program window has a menu bar and a toolbar. It provides functions such as:

The program can work with several e-books at once, opening each of them in a new tab. WinDjView allows you to read a document in full screen mode, and you can only use the mouse to turn pages. If there is very small text on the pages of a book, you can use a screen magnifier.

In the program settings in the “Display” tab, the user can easily correct the colors of the image to suit his vision.

Here you can enable color inversion. This way you can read white text on a black background.

DjVu Reader

Another, quite old program for reading déjà vu files. By the way, the program has not been supported by developers for quite a long time, namely since 2005, but still remains in demand among many users. Therefore, if you are still wondering how to open djvu, then DjVu Reader will certainly help you.

You can download the program on the official website of the developer - djvureader.org

DjVu Reader does not require installation on your computer and is launched from the downloaded folder with files. Therefore, if you need to quickly open an e-book, then download this reader and use it.

Note! Since the program has not been supported by developers for quite a long time, it may not work entirely correctly on new versions of the Windows operating system.

STDU Viewer

This program is the most universal solution than the readers described above. Since it can work not only with Djvu files, but also with PDF, EPub, FB2 and many other e-book formats. This makes the program an incomparable leader among other similar solutions, since you do not have to keep several different utilities on your computer.

You can download the program on the official website of the developer: www.stduviewer.ru

Note! To use the program for free, during installation you must check the box “I will not use STDU Viewer for commercial purposes.”

Also, when installing the reader, you can specify what types of files it will work with. To do this, check the boxes in the “Associate extensions” window.

STDU Viewer is liked by many users for its well-thought-out interface, which allows you to comfortably work with e-books. In the working window of the program there are many toolbars, with the help of which the user can easily customize the program to suit his needs.

The program has the following settings:

Selecting the document display mode;
Adjusting brightness and contrast;
Quick search by document;
Copying text if there is a special layer in the document;
Text highlighting;
Restoring an open document in case of an emergency termination of the program;
Setting up page division (horizontally or vertically);

The program also has a number of settings, which can be accessed by going to the “File” - “Program Settings” menu.