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Extract images from a PDF document

27 January, 2008 - 20:06

When you want to extract a bitmap image from a PDF document, it is tempting to do the "print screen" trick. The drawback of this approach is that you'll inevitably lose quality: the image pixels will typically not map to your screen's pixels in a one to one fashion because of the decimation/resampling/scaling (or even rotation) when viewing the PDF document.

There are probably a lot of tools extract the bitmap image correctly out there. I guess this functionality is built in in Adobe Acrobat reader. But if you're in my situation (no desire to use Adobe's bloat) or you just need a small handy command line tool for linux (or other "unixes"): try pdfimages. It's part of the xpdf package, which is probably available for all major linux distributions.

Usage is very straightforward:

pdfimages -j foo.pdf  bar

This will extract all images from foo.pdf and save them in JPEG format (option -j) to bar-000.jpg, bar-001.jpg, bar-002.jpg, etc.

Inspired by http://www.boekhoff.info/?pid=linux&tip=extract-images-from-pdf-files

Feh, yet another image viewer for Linux

1 August, 2006 - 10:12
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Some years ago, when I solely worked in Windows, I happily used Irfanview as image viewer. Under Linux I didn't found a real replacement for it, yet. I already tried Gwenview, Kuickshow, Kview, ImageMagick's display, xv and maybe some others, but all have their little quirks and annoyances concerning speed or usability.

Here's a new candidate for my image viewer list: Feh (available for Ubuntu in the universe repository). Linux.com has a short overview of feh. It's a command line application, so it has it shortcomings on the usability front, but it quite fast and has nice features (hot keys, different view modes, mouse control, directory traversal, ...).