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Open a PDF · tap a line to read from there
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Drop a PDF here

or click to browse · tap any line to read from there
All standard PDFs supported

Ready Pen — 0 annotations 100%
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✏️Pencil Only
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Google Drive

Sign in to open PDFs from your Drive and save annotations back automatically.

✅ Open any PDF from your Drive
✅ Save annotated PDF back to Drive
✅ Works offline after first load
✅ Your files stay private — read only what you open

You'll be asked to grant Folio read/write access to your Drive files only.

Save / Export

Choose how to save your annotated document.

💡 Auto-save is always on. Annotations are saved to this device every 4 seconds automatically via IndexedDB — even without choosing a file.
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