Unlock PDF
Remove printing, copying, and editing restrictions from a PDF.
Upload a restricted PDF and download an unencrypted copy without owner limits on print, copy, or edit. If the file asks for a password to open, enter it.
Unlock vs remove password
- Unlock — often enough when only owner restrictions apply (empty user password)
- Remove password — always asks for the current open password before decrypting
Limits
- One PDF up to 10 MB
- Unknown passwords are not guessed or recovered
- Use only on documents you are allowed to unlock
Passwords are used for the current job only and are not stored.
Security and privacy
Encryption at rest
Files are encrypted during storage with AES-256-GCM using a unique key per file
Auto-deletion
Uploaded and processed files are removed after the session ends
Temporary sessions
Processing sessions expire automatically and are not kept as a permanent archive
Protected download links
Downloads require a short-lived access token — not a public permanent URL
Recommended tools
FAQ
Unlock removes owner restrictions such as printing limits and can work with an empty user password. Remove password always requires the current open password before decrypting.
Yes. Files are transferred over a secure connection, encrypted while stored on the server, and automatically deleted. Flimpa does not store documents permanently and does not use them to train models.