Matthew Berman introduces Folio, a free open-source PDF reader and editor

Matthew Berman introduces Folio, a free PDF reader and editor that offers reading, editing, signing, highlighting and note-taking, and that can use an AI assistant.

Berman says the app is "not flashy" and "not bloated," and that users can connect their own ChatGPT subscription to use its AI features. The project is hosted on GitHub under Forward-Future and is described as open source.

The report is a social media post on X, and it does not describe what AI features cost beyond the ChatGPT subscription requirement.