Looking for the best PDF annotation app for Windows, Mac, or iPad? Here are 10 options for you, reviewed in detail!

A high school student found a way to run the classic PC game Doom from within a PDF file by leveraging the format's support for JavaScript and the Chromium browser engine.

There is a race to see who can bend the PDF file format to do the most impressive thing. Considering the more-than-30-year-old shooter, Doom, has been ported to many unexpected places, it was ...