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Password Protect PDF

Encrypt your PDF with a password

Maximum file size exceeded!

The file exceeds the maximum file size allowed. Please feel free to use our desktop version.

Maximum pages exceeded!

The file exceeds the maximum number of pages allowed. Please feel free to use our desktop version.

Maximum pages exceeded!

To increase the page limit per file to 2000 pages, please subscribe to HiPDF Pro.

Maximum file size exceeded!

To increase the size limit per file to 100MB, please subscribe to HiPDF Pro.

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  • Upload completed Upload failed Damaged file Invalid File Type! File protected
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Enter a password to protect your document.

Note: this will make it impossible to open without entering the correct password.

Done!

Your PDF file is now protected with a password!

Start Over

Uploading

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Preparing...

File protected

This file is password protected, please submit the password so that we can open it.

Processing

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How to password protect a PDF

Drag-and-drop your PDF file into the box above or click the Choose File button to browse and upload it. Set your password and confirm it. Then you can download the encrypted PDF file.

Your passwords and files are safe with us

All your passwords and files are transmitted using a secure SSL connection. All files uploaded are permanently deleted within one hour. Passwords are deleted instantly after processing.

Secure your PDFs without cost

Protect your PDF documents with HiPDF is absolutely free. You can set a password to your important documents without creating an account or installing a desktop software.

Windows, Mac and Linux supported

As a web-based application, we can support many operation systems like Windows, Mac and Linux. Password protecting your PDF files everywhere!

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