PDF files can be locked with two types of protection: an open password (required to view) and a permission password (restricts printing and editing). If you own the PDF and have forgotten the password, or received a PDF with restrictions you want to remove, here is how to unlock it.
Types of PDF Locks
- Open password: Requires a password to view — you must know this password to open the file
- Permission/restriction password: Allows viewing but blocks printing, copying, or editing — this type can be removed
How to Unlock PDF Restrictions Free
For permission-restricted PDFs (you can open them but cannot print or copy), visit imgresizr.com's PDF Tools section and upload the PDF. Open the Unlock tool. Enter the permission password if you know it, or use the remove-restrictions function for owner-protected PDFs. Download the unlocked PDF with all restrictions removed.
PDF Unlock Scenarios
| Scenario | Can Unlock? |
|---|---|
| Permission password (you know it) | Yes — enter password to remove |
| Permission password (unknown) | Often yes — owner restrictions |
| Open password (you know it) | Yes — enter to save without password |
| Open password (unknown) | No — requires password |
Important Legal Note
Only unlock PDFs you own or have permission to modify. Unlocking PDFs you do not own to access restricted content may violate copyright law and terms of service. Use this tool responsibly for your own documents — for example, PDFs you created but forgot the password to, or documents where restrictions were set unnecessarily.
Unlock your own PDF files for free at imgresizr.com — remove restrictions instantly without software.