I opened the test PDF, ran a few quick commands (echo and top), and laughed when I saw it in action. The Linux environment contains a shell, vi (text editor), and several other tools that you can ...

Recap: Early last month, someone used the PDF format's JavaScript support to run Tetris inside what should normally be a static text document. Predictably, within days, a high school student ...

On Windows and Mac machines, it’s not too troublesome to add text or drawings (such as signatures) to PDF files, but [Mansour Behabadi] found that on Linux machines, there didn’t seem to be a ...