Adobe Acrobat and Reader users are under attack from hackers using a zero-day vulnerability. Update within 72 hours, Adobe ...

Hackers have been exploiting an Adobe Reader zero-day vulnerability since December 2025; PDF users are warned.

Hackers have been quietly exploiting what appears to be a zero-day in Adobe Acrobat Reader for months, using booby-trapped PDFs to profile targets and decide who's worth fully compromising.

Highlighting text in a PDF document is handy for marking important areas you can access later. You can use Microsoft Edge to highlight PDF or any other software with a PDF highlighting feature.