This PDF consists of a playable copy of Doom
Here at Ars, we're suckers for stories about hackers getting Doom working on whatever from CAPTCHA robotic checks and Windows' notepad.exe to AI hallucinations and fluorescing gut germs. Regardless of all that experience, we were still tossed for a loop by a current presentation of Doom running in the normally fixed boundaries of a PDF file.
On the Github page for the quixotic job, coder ading2210 goes over how Adobe Acrobat consisted of some robust assistance for JavaScript in the PDF file format. That JS coding assistance-- which goes back years and is still completely recorded in Adobe's main PDF specifications-- is presently executed in a more restricted, more safe kind as part of PDFium, the integrated PDF-rendering engine of Chromium-based internet browsers.
In the past, hackers hav...