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Pditor

Password-protect PDF

AES-256 encryption with an open password plus viewer-permission tiers (read-only, print, form-fill, or password-only). Industry-standard, Acrobat-compatible.

Permissions

Standard PDF readers (Acrobat, Preview, Chrome) honor these restrictions. PDF permissions are advisory, though — a tool built to ignore them can still read a file it's able to open, so for truly sensitive content, keep the open password private rather than relying on the tier alone.

Enter an open password of at least 4 characters to continue.

Passwords are sent over HTTPS, used once to encrypt, then discarded — never stored.

How to

  1. 01

    Upload your PDF

    Drop in the PDF you want to secure, or pick it from your device.

  2. 02

    Set a password and permissions

    Choose an open password and the viewer-permission tier you want — read-only, allow printing, allow form-fill, or password-only.

  3. 03

    Download the protected file

    We apply AES-256 encryption and your protected PDF is ready in seconds.

Why Pditor

Real AES-256 encryption

The industry-standard, Acrobat-compatible encryption banks and law firms rely on — not a fake "lock".

Permission tiers

Allow read-only, printing, or form-fill, or require a password just to open the file.

FAQ

How do I password-protect a PDF for free?+

Upload your PDF, set an open password, and download — no account needed. The free tier covers 5 runs a day.

What encryption does Pditor use?+

AES-256, the industry standard. The protected file opens in Adobe Acrobat and every standard PDF reader.

Can I control whether people can print or edit the file?+

Yes — choose read-only, allow printing, allow form-fill, or password-only access.

Are my files kept after protecting them?+

No. Uploads and outputs are deleted within an hour on the free tier (up to 24 hours on Pro).