Protect PDF
Add a password before you share a sensitive document.
Private on your deviceWe never see your filesFree, no sign-up
Add a PDF here
PDF must not already be password-protected
Common questions
- Do you see my password?
- No. Your PDF and password stay on your device. We never receive them.
- Can I recover the password if I forget it?
- No. Keep your password safe — we cannot reset it because we never have access to your file.
- Can I protect an already locked PDF?
- Unlock it first with Unlock PDF, then add a new password here.
You might also need
Unlock PDF
Remove PDF password when you know it. Unlock protected files — free, private.
Watermark PDF
Add draft or confidential watermark on every PDF page — diagonal or footer.
Merge PDF
PDF merger — combine multiple PDFs into one file. Free pdf combiner, private, no upload.
Compress PDF
PDF compressor — reduce file size for email. Shrink scans and image-heavy PDFs.
Word to PDF
Word to PDF converter — turn .docx into PDF for upload or sharing. No Microsoft Word needed.
Add Page Numbers
Add page numbers to PDF for reports and printouts. Pick position and format.