Password protect a PDF
Lock a PDF with a password using strong AES-256 encryption. You can also stop people printing, copying or editing it.
Nothing is uploaded. Your files stay private.
How to password protect a PDF
Three steps, about ten seconds.
- 01
Add your PDF
Drop it in the box, or tap to choose it.
- 02
Choose a password
Type it twice, and decide whether people can print, copy or edit.
- 03
Download
Press Protect PDF to save the locked copy.
Good to know
Payslips, bank statements, medical letters and contracts often travel by email. A password means only the person you share it with can open the file, even if the email is forwarded or the attachment is saved somewhere public.
Quikdo uses AES-256, the strongest encryption PDFs support. Send the password separately from the file, for example by text message, and use something longer than a single word.
Turning off printing, copying or editing adds limits that most PDF apps respect after the file is opened. Your password can't be recovered, so keep a copy of the original or a note of the password.
Frequently asked questions
How do I password protect a PDF?
Drop the PDF in, type a password twice and download. The new copy asks for the password before it opens.
How secure is it?
Files are encrypted with AES-256. With a strong password, the PDF can't be opened without it.
What if I forget the password?
It can't be recovered, by us or anyone else. Keep the original file or store the password safely.
Can I stop people from printing or copying?
Yes. Switch off Print, Copy text or Edit. Most PDF apps respect these limits.
Is my PDF uploaded?
No. Encryption happens on your device and your password never leaves it.