Protect PDF Online: Add Password Encryption and Secure PDF Files
3 min read
•Verified Educational ResourceSecure Your PDF Files with Standard Password Protection
Add an access password to restrict opening, viewing, or copying sensitive content. The protector writes a standard Revision 3 trailer dictionary locally in your browser.
How to Encrypt a PDF
To secure your file:
- Upload PDF—Select the PDF document you want to secure.
- Set password—Enter the password you wish to lock the file with.
- Encrypt—Click Protect PDF to encrypt the byte streams in-memory.
- Download file—Save the locked PDF to your local storage.
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