🔒 PDF300
Put a password on a PDF
The file has to be emailed but not to just anyone who ends up with the message. A password means the wrong hands get a locked file.
Open the toolRuns on our server — the file is uploaded, processed and sent back.
How it works
- Add the PDFThe file is sent to the server to be locked.
- Set the passwordSend it to the reader some other way — not in the same email as the file.
- DownloadSave the locked file.
Questions
Do my files get uploaded?
Yes — this one runs on a server, so the file is sent over the network and processed there. If you would rather nothing left your device, use the browser tools on the main page instead.
Is there a watermark or a sign-up?
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Neither. No account, no watermark on the output. The practical limit is your device memory — large scanned files use more of it.