Protect PDF with Password Online
Protect a PDF with an opening password using AES-256 encryption. Set and confirm a password locally, then download the protected document on your device.
Your input is processed in your browser. How local processing works
How to use Protect PDF with Password
Choose input
Choose your document from your device.
Review settings
Enter and confirm a new opening password.
Save results
Review the result and download a new copy.
Tips for Protect PDF with Password
The password is required to open the file; store it safely.
Protect a report with a unique password before sharing it.
What to expect from Protect PDF with Password
Process documents on your device
Download PDFs or page images
Review results before sharing
When to use Protect PDF with Password
Protect a PDF with an opening password using AES-256 encryption. Set and confirm a password locally, then download the protected document on your device.
Protect PDF with Password: frequently asked questions
What to know before you go.
Can I process large files?
Files follow the browser memory limit: 50MiB on smaller devices and 200MiB on desktop. Page rendering and extraction support up to 200 pages at a time.
How do I use Protect PDF with Password?
Enter and confirm a new opening password.
What should I check in the result?
The password is required to open the file; store it safely.
Are my files uploaded?
No. Files and passwords are processed in this browser. Processing assets download from this site.
Tools to use with Protect PDF with Password
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Merge PDF files online into one ordered document.
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Reorder PDF pages online to repair a scan or move a cover.
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Convert PDF pages to PNG, JPG or WebP images online.
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