Portable Document Format

From XPUB & Lens-Based wiki

A proprietary format owned by Adobe until 2008, when it was released and relicensed as an ISO standard.

http://en.wikipedia.org/wiki/Portable_Document_Format

Free software tools that work with PDF

Cookbook

apt-get install poppler-utils
pdftocairo -png mydoc.pdf

Creates a series of PNG files.

Python tools to manipulate / generate PDF