Protect PDF with password
Add a password to a PDF with strong AES-256 encryption.
Runs in your browserFree — no signup
How to use Protect PDF with password
Protect PDF adds a password to your document using AES-256 encryption, the same strength banks use. Only people with the password can open it.
Step by step
- 1Drop the PDF you want to protect.
- 2Type a password twice.
- 3Choose whether printing and copying are allowed.
- 4Select Protect PDF and download the result.
What to expect
- A PDF that asks for a password when opened.
- Works in all common PDF readers.
- The original content is not changed.
Common use cases
- Preparing a contract, invoice or report before sending it.
- Assembling scanned pages into a single tidy document.
- Extracting just the pages a colleague or portal actually needs.
- Fixing a PDF that a scanner or printer produced badly.
Privacy & data
Encryption happens on your device. Your file and password are never uploaded.
Frequently asked questions
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