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Best pdf to epub converter4/14/2023 ![]() Note to calibre developers: Why did you not use standard image manipulation libraries? Why choose a heavy GUI-oriented framework (like Qt) for simple image operations? Quite a great package (calibre) with such a poor decision, in my opinion. If you can live with unmodified images from the original book that you are converting and don't need to compress/resize those images, then you're lucky, since you can avoid using Qt/X11. In short, the conversion tool only uses Qt for image manipulation operations. usr/lib/calibre/calibre/ebooks/conversion/plugins/mobi_output.py How to convert PDF to EPUB Step 1 Upload pdf-file (s) Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page. Basically, I removed Qt imports and fixed the remaining errors in the scripts by making those functions empty (or throw an exception) in these 2 files (in my case): /usr/lib/calibre/calibre/utils/img.py Thats it You can watch the progress of the conversion of your ePub file in realtime and once it is done download the PDF result. The last part was the most painful, since it involved modifying some of the python util scripts, which use Qt (which then requires some X11 libs) for image manipulation and we want to avoid that on a server/headless machine. How to convert ePub to PDF: Step 1: Upload your input ePub ebook Step 2: The file conversion to from ePub to PDF will start automatically Step 3: Download the result. I also had to specify a command line option -mobi-keep-original-images, since I wanted to convert epub to mobi format using: ebook-convert ~/test.epub ~/test.mobi -mobi-keep-original-images Installing some missing python modules (which you figure out by running the convert command ebook-convert inputfile outputfile), in my case: python3-msgpack TalkHelper PDF Converter This comprehensive PDF conversion software allows you to convert PDF to EPUB as well as other formats, and convert other formats to PDF. The steps involved extracting these directories from the calibre package (deb, rpm, whatever): /usr/bin/ebook-convert Select EPUB as the format you want to convert your PDF file to Click Convert to convert your PDF file However, users must make sure to have an email to use this tool. I've managed to cut out ebook-convert from Calibre (which, for who knows what reasons, requires Qt for image manipulation) and got a command-line only interface for it, to be able to use the tool on a headless/server machine.
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