Question 1

What encryption does it use?

Accepted Answer

AES-256 — the industry standard for PDF encryption. The same algorithm used by banks and governments.

Question 2

What's the difference between an open and owner password?

Accepted Answer

The open (user) password is required to view the file. The owner password is required to change permissions. You can set one, both, or either.

Question 3

Can I prevent printing but allow viewing?

Accepted Answer

Yes — set an owner password and uncheck the 'Print' permission. The reader can view but not print.

Question 4

Can someone remove the password?

Accepted Answer

Only with the correct owner password using a tool like ours. AES-256 is computationally infeasible to crack with a strong password.

Question 5

Does the PDF remain searchable after encryption?

Accepted Answer

Yes — text content remains searchable inside PDF viewers (Acrobat, Preview, etc.) even when protected.

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