Protect & Unlock PDF Online
Encrypt sensitive PDF files with a password or remove existing passwords from your documents. Completely confidential inside your browser.
Select or drop the PDF you want to protect
Your file is never uploaded to any cloud server. Encryption and decryption occur 100% inside your local device memory.
About this Protect & Unlock PDF tool
Encrypt confidential PDF files with 128-bit passwords or remove passwords from protected PDFs completely in your browser.
Protect & Unlock PDF lets you encrypt sensitive files with 128-bit passwords or remove passwords from protected documents in your browser with zero server upload.
How to use it
- Select or drop your file into the upload box.
- Choose any available options for size, quality, pages, or language.
- Run the tool and wait for the result to finish processing.
- Download the output file and check it before sharing or deleting your original.
Good to know
- Supported formats include PDF.
- Protect & Unlock PDF lets you encrypt sensitive files with 128-bit passwords or remove passwords from protected documents in your browser with zero server upload.
- Use clear, readable source files. Scanned pages work best when text is straight, sharp, and not covered by shadows.
Privacy and reliability
Uploaded files are used only to complete the action you request. Some tools run directly in the browser, while heavier conversions may process temporarily on the server and then remove working files after the result is created.
FAQ
Is this tool free?
Yes. You can use this tool without creating an account.
Will the output always look identical?
Most conversions keep the content as close as possible, but compression, OCR, video processing, and format changes can affect quality depending on the source file.
What should I do if a file fails?
Try a smaller file, check that the file is not corrupted, and make sure the file type matches one of the supported formats listed above.