Online PDF tool
Protect PDF with Password
Protect a PDF with an open password online using a private server-side workflow.
Encrypted server processing. Your file is uploaded over HTTPS and stored temporarily for this task. Uploads and results currently expire within 24 hours.
Start with your file
Encrypted uploadSupports PDF files. Upload up to 1 file, 10 MB each.
How it works
How to Password Protect a PDF Online
Upload your file, choose any required options and download the result.
- 1
Upload
Choose the PDF file you want to protect.
- 2
Set password
Enter the password required to open the document.
- 3
Download
Download the password-protected PDF file.
Add an open password
Require a password before the PDF can be opened.
Server-side qpdf workflow
Protection runs in your backend using qpdf rather than a third-party API.
Simple PDF security
The first version focuses on open-password protection for predictable behavior.
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