System requirements

Version 1.0. Last updated 7 October 2026.

ynotPDF runs on:

• Windows 11: Intel and AMD, 64-bit; and Windows 11 on Arm.
• macOS: Apple silicon and Intel.
• Linux: 64-bit, as .deb, .rpm or AppImage.

To activate a licence, and about once a day after that, ynotPDF needs an internet connection. After activating, it works offline for up to 60 days, and it warns you 14 days before that time runs out.

It opens PDF documents. The Free Reader reads, searches, prints and listens to them; reads notes and comments; opens attachments; checks signatures; and browses PDF Portfolios, previewing the files inside and taking them out. It cannot edit, comment or sign, and it has no Help assistant; editing and signing need a licence.

The licence agreement says more: section 8, your legal guarantee, holds ynotPDF to working on the systems published here. If your computer is older or different, try the Free Reader — it is free, and it needs no licence key.