Protect PDF with a password – encrypt without upload
Protect confidential PDFs with a password. PDFMy encrypts with AES – and the password never leaves your device.
Protect with password – open in PDFMy now →
How it works
- Click ‘Protect with password’ and choose the file.
- Enter a password and, if you wish, block printing or copying.
- Save.
Why PDFMy?
- Free – no registration, no subscription, no page limit.
- No upload – your files stay on your device (privacy-friendly under the GDPR).
- Everywhere – in the browser or as an app, on Windows, on the Mac and on your phone.
- From Paderborn – developed by Mentor GmbH (Mentor Group).
Frequently asked questions
Can I remove the protection again?
Yes, with ‘Unlock PDF’ – you need the password for this.
Where is the password stored?
Nowhere. It is only used for encryption.
More tools
- Merge PDFs
- Compress PDF
- Redact
- Sign
- PDF to Word
- Scan & recognise text
- Write e-invoice
- Repair PDF
- Images to PDF
- Edit PDF
- Word to PDF
- Split PDF
- Rotate and delete PDF pages
- PDF to JPG
- Compare PDF
- Check PDF before sending
- Make PDF accessible
- Create PDF/A
- Fill in PDF form
- Page numbers and watermarks
- Unlock PDF
- PDF printer
- Create booklet
- Multiple pages per sheet
- Print as poster
- Invert colours
- Remove hidden data
- Non-copyable text
- Prepare for AI
- All pages to A4
- In greyscale
- Merge alternately
- All tools
- Help
Found a bug or have an idea? Report a bug – by email from your mail program, without documents.