Protect PDF

The PDF is first rebuilt page-by-page to produce a clean base document, then standard PDF encryption (RC4, 40-bit, the PDF "Standard Security Handler" revision 2) is applied to every stream in the file using keys derived from your chosen password.

You can set a "user password" (required simply to open the file) and optionally a separate "owner password" that controls permissions — whether the document can be printed, copied, or modified without that password.

Permission flags are embedded in the encryption dictionary per the PDF specification, so compliant PDF readers will honor restrictions like "printing disabled" even if the user password is entered correctly.

Your files are uploaded over an encrypted (SSL) connection. We don't store, read, or share the contents of your files — they're processed to generate your result and are not retained on our servers afterward.

• Adding a password to a PDF containing sensitive personal or financial information before emailing it.
• Restricting printing or copying on a document you're sharing for review but don't want redistributed freely.
• Protecting a contract or legal document so only the intended recipient (who has the password) can open it.

• Choosing a weak, guessable password — a PDF password is only as strong as the password itself.
• Sending the password in the same email as the protected file — for real security, share the password through a different channel (text message, phone call).
• Forgetting the password yourself — there's no reliable way to recover a lost PDF open-password; keep a record somewhere secure.

• Use a unique password for sensitive documents rather than reusing one you use elsewhere.
• Decide whether you need an open password (blocks viewing entirely) or just permission restrictions (allows viewing but blocks printing/copying/editing) — they serve different purposes.

We respect your privacy. All files are processed securely and are never sold, shared, or used for anything beyond generating your result.