Unlock Password Protected PDF
Remove password security and restrictions from your PDF document.
Select Locked PDF File
or drag & drop PDF here
About Unlock PDF Online — Free PDF Password Remover
KAOpdf Unlock PDF is a free online utility that removes password restrictions and permissions from protected PDF documents. If you know the password and want to permanently remove it so you can open, print, edit, and copy content freely without entering the password every time, this tool does it in one click.
How to Use Unlock PDF
Upload Protected PDF
Select your password-locked PDF document.
Enter Document Password
Type the valid password to authorize decryption.
Download Unlocked PDF
Instantly download the unlocked PDF file with password protection permanently removed.
Specifications & System Limits
100% Client-Side Privacy
Files are processed entirely within your browser memory via WebAssembly. Your documents never touch external servers.
Super Fast & No Waiting
Instant high-speed conversion with ultra-low latency. Never wait in arbitrary processing queues.
100% Free & No Watermarks
All PDF tools are accessible free of charge without watermarks, hidden paywalls, or required registration.
Frequently Asked Questions (FAQ)
For legal and security reasons, you must know the password to decrypt the file. Our tool permanently strips the password so you never have to type it again.
No. The visual layout, images, and text remain 100% untouched.
Yes. Decryption happens securely and files are deleted automatically from our servers.
Yes. All printing, copying, and editing permission restrictions are completely removed.
Yes, 100% free with no watermarks and no hidden fees.
Related PDF Tools
How was your experience using KAOpdf Unlock PDF?
Give us a star rating or report any bugs you encountered with this tool.
About Unlock PDF Online — Free PDF Password Remover
KAOpdf Unlock PDF is a free online utility that removes password restrictions and permissions from protected PDF documents. If you know the password and want to permanently remove it so you can open, print, edit, and copy content freely without entering the password every time, this tool does it in one click.
How to Use Unlock PDF
Upload Protected PDF
Select your password-locked PDF document.
Enter Document Password
Type the valid password to authorize decryption.
Download Unlocked PDF
Instantly download the unlocked PDF file with password protection permanently removed.
Specifications & System Limits
100% Client-Side Privacy
Files are processed entirely within your browser memory via WebAssembly. Your documents never touch external servers.
Super Fast & Reliable
Instant high-speed conversion with ultra-low latency. Never wait in arbitrary processing queues.
100% Free & No Watermark
All tools on KAOpdf are completely free with no watermarks, no file limits, and no account registration required.
Frequently Asked Questions (FAQ)
Can I unlock a PDF if I forgot the password?+
For legal and security reasons, you must know the password to decrypt the file. Our tool permanently strips the password so you never have to type it again.
Will unlocking the PDF alter the document formatting?+
No. The visual layout, images, and text remain 100% untouched.
Is it safe to unlock confidential PDFs?+
Yes. Decryption happens securely and files are deleted automatically from our servers.
Can I print or copy text after unlocking?+
Yes. All printing, copying, and editing permission restrictions are completely removed.
Is KAOpdf Unlock PDF free?+
Yes, 100% free with no watermarks and no hidden fees.