
Description
Reading papers and long documents, the worst part is switching windows: view the PDF, copy a paragraph into ChatGPT, ask, repeat. Folio folds that into the reader: open a document and ask in the side panel, with answers citing page numbers you can click to jump to, powered by your own ChatGPT or Claude subscription and no Folio account.
Beyond Q&A it is a clean, fast PDF reader: highlights, notes, search and handwritten signatures, on Windows, macOS and Linux, MIT licensed. Windows also has a portable build.
Ask your document: Question the whole document in the side panel; answers cite pages, using your own ChatGPT or Claude subscription
Highlights and notes: Colored highlights with notes collected in the sidebar
Search: Full-text search marks every match and lists the pages, dark theme included
Signatures: Place a handwritten signature on documents that need one
Three platforms: Installers for Windows, macOS and Linux, with deb and AppImage
No sign-up: No Folio account; documents stay on your device
Beyond Q&A it is a clean, fast PDF reader: highlights, notes, search and handwritten signatures, on Windows, macOS and Linux, MIT licensed. Windows also has a portable build.
Features
Ask your document: Question the whole document in the side panel; answers cite pages, using your own ChatGPT or Claude subscription
Highlights and notes: Colored highlights with notes collected in the sidebar
Search: Full-text search marks every match and lists the pages, dark theme included
Signatures: Place a handwritten signature on documents that need one
Three platforms: Installers for Windows, macOS and Linux, with deb and AppImage
No sign-up: No Folio account; documents stay on your device

