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PDF Password Protector
Protect your sensitive PDF documents with password encryption. Uses AES-256 encryption — the industry standard. Set a custom password and download your secured PDF instantly.
🔒 Processing happens in your browser — files are never uploadedFree · No sign-up required
How to Use
- 1Upload your PDF
- 2Enter a strong password (with strength indicator)
- 3Confirm your password
- 4Click Protect & Download to get your encrypted PDF
Why use ShowPro's PDF Password Protector?
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100% Private
Files never leave your browser. Zero server uploads.
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Instant Results
Processing happens locally — no waiting for uploads.
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Completely Free
No account needed. Use 5 times per day, always free.
Frequently Asked Questions
How strong is the encryption?
We use AES-256 encryption, which is the same standard used by banks and governments. It's virtually unbreakable with current technology.
Can I remove the password later?
Once a PDF is password-protected, you cannot remove the password without knowing it. Make sure to store it securely.
What happens if I forget the password?
There is no way to recover a forgotten password. We strongly recommend using a password manager or storing the password securely.
Is my PDF uploaded to a server?
No. All encryption happens in your browser. Your sensitive documents never leave your device.
Does this work on all PDF readers?
Yes. Password-protected PDFs work with Adobe Reader, Preview (Mac), browsers, and most PDF viewers.
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