A PDF editor that never sees your PDF
Read, search, annotate, sign, fill in forms, reorder pages and export — all of it running inside this browser tab. No upload, no account, no watermark, no page limit.
What is in the editor
Reading
- Page thumbnails and document bookmarks
- Zoom, fit to width, fit whole page
- Rotate any page, fullscreen, dark mode
- Opens password-protected files
Search
- Find any phrase across the document
- Every match highlighted in place
- Step through results, match case or whole words
Annotating
- Highlight, underline, strike through
- Sticky notes that stay notes in other readers
- Freehand pen, shapes and arrows
- Any colour, any thickness, eraser
Editing
- Add text in any size, font and colour
- Cover and replace text already on the page
- Drop in images, move and resize anything
- Undo and redo behind every change
Pages
- Add, delete, duplicate and reorder
- Rotate individual pages
- Extract a selection to its own file
- Merge several PDFs, or split one apart
Forms, signing & saving
- Fill in the fields a document already has
- Add your own text fields and checkboxes
- Sign by drawing, typing or uploading
- Save, print, export pages, optional autosave
No uploads, ever
Your document is read straight into this browser tab. Nothing is sent to a server, because there is no server to send it to.
Nothing is stored
No accounts, no cookies, no analytics, no logs. Recent files are remembered in your own browser and only there — clear them in one click.
Runs on your device
Rendering, search, annotation and export all happen on your own CPU, through pdf.js and pdf-lib compiled into the page.
How it works
Three steps, none of which involve the network. The only request Folio can make to another host is fetching a URL you typed yourself.
- 01
Open a PDF
Drag it in, browse for it, or paste a URL. Password-protected files are unlocked locally and the password is never kept.
- 02
Edit it
Annotate, sign, fill forms, add text and images, reorder or delete pages — with undo behind every change.
- 03
Save the result
Your edits are baked into a real PDF in the tab and handed straight to your downloads folder.