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7 votes

Conversion of djvu file into pdf file without increasing file size

The short answer is: PDF is not a good format for storing image data. The only reason that it is often used for doing so, is that it is one of the few formats (the other more well known ones are DjVu ...
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4 votes

Conversion of djvu file into pdf file without increasing file size

You can read about the djvu file format here (with focus on the compression here), but the main difference is how the two formats compress the data. Here are some relevant excerpts from Wikipedia: ...
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  • 3,076
3 votes

How insert the outline (the bookmarks) into DjVu

First, create your desired structure in a text editor. On the first line will be placed keyword bookmarks in round brackets as a root. Behind the chapter titles are located page numbers or page ...
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3 votes
Accepted

Different size pages in DJVU book

As all pages are having the same or very similar width and height, this seems a "simple" problem of some pages having the wrong resolution. Most pages have metadata that specifies 600 DPI others only ...
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2 votes

How to create DjVu format with selectable text?

You can also use ocrodjvu with a selected OCR engine, e.g. tesseract.
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2 votes

Is there a way to read DjVu files on a 4th gen Kindle?

What I always do to read DjVu ebooks on my Kindle is the following (In case they do not contain important images). I convert them to plain text using: https://www.djvu-pdf.com/ - just choose the ...
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2 votes

Scaling all pages in a PDF or DJVU file to the same size

There is a program called jPdftweak which will let you scale pdf pages to whatever size you would want. You can set the parameters for the conversion to the larger page size and jPdftweak will scale ...
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  • 329
1 vote

How to remove white space from the text layer in DjVu

First, use the djvutoxml tool to extract a text layer in XML format from the DjVu document. At the command prompt, type: path\djvutoxml.exe path\book.djvu path\book.xml Instead path parameter ...
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1 vote

Is there a way to read DjVu files on a 4th gen Kindle?

I achieved it with using DjVuLibre If you install the djvulibre-bin (Ubuntu install link) package, you will now have the djvups command, which converts a DejaVu file to PostScript .ps. You can then ...
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  • 111
1 vote

Batch conversion of arbitrary formats to djvu, mobi, epub - not with calibre

I've been converting PDF to other formats for over 3 years. I've converted at least 20 books. A PDF file is not easily convertible, except for text paragraphs. I have a lot of experience extracting ...
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  • 367
1 vote
Accepted

PDF vs DjVu benefits and disadvantages

Well in my opinion and also testing knowledge of ereaders... the djvu and pdf doesn't hold that great difference anymore... In the past djvu use to have a higher compression ratio cause the files to ...
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1 vote

is DjVu still useful as a format for ebooks?

In 2018 is no better format for eBooks with a complex text layout (magazines, encyclopedias). For pure text and minimal images is there epub format. I personally do not like PDF format. Badly working ...
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1 vote

is DjVu still useful as a format for ebooks?

Good compression is only one of the advantages of the DjVu format, cf. e.g. my presentation. I think however that we need better tools to handle the format conveniently. Some useful work has been ...
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1 vote

Is there a way to read DjVu files on a 4th gen Kindle?

You can use Duokan. It is available for Kindle 2, 3, 4, 5 and DX versions. It's upgrade and it's safe. The extension allows Kindle to work with EPUB, CHM, DOC, TXT, ZIP, RAR, JPG, PNG, BMP and DJVU ...
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1 vote

Does something about DjVu prevent making a free viewer on iOS?

As for patents, it seems they should expire soon. As for tools, the compression ratio depends havily on the quality of foreground/background separation. My experience confirms that the commercial ...
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