Encrypt PDF
LocalAdd user/owner passwords and AES encryption to a PDF with qpdf on the server.
Drag files here, or click to browse
Supports .pdf
Choose fileAES encryption runs locally in your browser — the file never leaves your device.
What is it? Encrypt PDF adds user/owner passwords and AES encryption to a PDF using qpdf on the server.
TL;DR: Password-protect PDFs with AES encryption (cloud).
How to use
- Sign in and upload the PDF.
- Set the user/owner passwords and permissions.
- Wait for the job and download the encrypted PDF.
FAQ
Which encryption is used?
AES encryption via qpdf with the permissions you select.
When are files deleted?
Cloud files follow the configured retention window.
Limitations
- Requires an account and cloud quota.
- Upload is required for this tool.
Privacy
Your files are never uploaded — everything is processed locally in your browser.