Upload PDF
Unlock PDF
Remove a known PDF password when you are authorized to create an unlocked copy.
Choose PDF fileDrag & drop your file anywhere in this box.
Encrypted upload, deleted right after processingFree · No sign-up · No watermarks
Simple, practical guidance
How to use Unlock PDF
Remove known PDF protection when you are authorized to create an unrestricted copy. Follow these steps to get a result you can confidently review, save, and share.
- 1
Choose the protected PDF.
- 2
Enter the correct opening password.
- 3
Confirm that you are authorized to remove protection.
- 4
Unlock and download the unrestricted copy.
Get a better result
Unlocking preserves the original page content and visual quality.
Know how your file is handled
The file is sent to the configured processing server because this job needs software that a browser cannot provide. Avoid uploading documents you are not permitted to process.
Check before you share
This tool is not intended to bypass passwords you do not know or documents you do not own.
Questions people ask
Unlock PDF FAQ
Clear answers about file quality, privacy, compatibility, and what to expect from the conversion.
What does Unlock PDF do?
Remove known PDF protection when you are authorized to create an unrestricted copy. It accepts a password-protected PDF and its password and produces an unlocked PDF.
How do I use Unlock PDF?
The process is straightforward. Choose the protected PDF. Enter the correct opening password. Confirm that you are authorized to remove protection. Unlock and download the unrestricted copy.
Is Unlock PDF available now?
Unlock PDF is available now on Big PDF Tools.
Will Unlock PDF reduce the quality of my document?
Unlocking preserves the original page content and visual quality.
Is it safe to use Unlock PDF with private files?
The file is sent to the configured processing server because this job needs software that a browser cannot provide. Avoid uploading documents you are not permitted to process.
Can I use Unlock PDF on a phone or tablet?
Yes. Unlock PDF works in a modern mobile browser: the file is sent to the server for processing, so keep a stable connection and leave the tab open until the job completes.
Is there a maximum file size for Unlock PDF?
The practical limit depends on the upload size and the processing server. If a very large file stalls, try a smaller file or split the work into manageable parts.
Does Unlock PDF change my original file?
No — your original file stays unchanged. Unlock PDF saves an unlocked PDF as a separate download.
How long does Unlock PDF take?
Small files usually finish quickly. Large page counts, high-resolution images, complex layouts, upload speed, and server load can all increase how long Unlock PDF takes.
Why did my Unlock PDF job fail or look different?
This tool is not intended to bypass passwords you do not know or documents you do not own. Also confirm that the source file is not damaged, uses a supported format, and is not blocked by an unknown password.