Password-protect a PDF

Add an AES-256 password and printing or copying limits.

  • Free, no sign-up
  • Files stay on your device

Protect PDF PDF Studio

No document open
Click to select · Shift/Ctrl for more · Drag to reorder · Double-click to open
Private: processed on this device, nothing uploaded Every tool is free

Signature

Draw with the mouse, a pen or your finger.

Your signature stays in this tab only. It is never stored or uploaded.

Keyboard shortcuts

Ctrl + Z / Ctrl + Y
Undo / redo
F
Focus mode (fill the window)
[ and ]
Hide or show the tool list and the options panel
Ctrl + A, Delete, R
Select all pages, delete, rotate (page grid)
← →, + −, 0
Previous / next page, zoom, fit (viewer)
Space + drag
Pan the drawing
Enter, Esc, Backspace
Finish, cancel, remove last point (measuring)
Delete, Alt + arrows
Delete or nudge the selected mark-up
Ctrl + K
Search the site
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This list

Questions

Can it unlock a PDF?

Only if you know the password. Open the file with its password and download it: the copy has no password.

Are my files uploaded?

No. Everything runs in your browser on your own computer. Files are never sent to Aakaar or anywhere else, and they are deleted when you leave the page.