Password-Protect PDF
Encrypt a PDF with a password required to open it.
Uses AES-256 encryption. Choose a strong password and save it securely; this site cannot recover it.
How to use Password-Protect PDF
- Choose a supported file from your device. For spreadsheets, load the data and choose the worksheet.
- Set the options for this task: New password.
- Run the tool, review the result, and use the copy or download option provided.
Continue your workflow
Prepare a PDF packet — Combine, arrange, and label documents.
What to expect
Uses AES-256 encryption. Choose a strong password and save it securely; this site cannot recover it.
Local processing
Your files and inputs are processed in your browser and are not uploaded. Download or copy results before leaving. Normal site and library requests still reach the hosting service.
Frequently asked questions
What does Password-Protect PDF do?
Encrypt a PDF with a password required to open it. Uses AES-256 encryption. Choose a strong password and save it securely; this site cannot recover it.
Are my files or input sent to a server?
Your files are processed locally in your browser and are not uploaded. Text inputs and passwords also stay in the tool on your device. The hosting service still receives normal requests needed to serve the website.
Can I recover a result after closing the page?
Download or copy your result before closing or reloading. Optional local history stores tool names and activity counts, not your inputs, passwords, filenames, or results.