PDF Tools / Browser processing
Lock PDF
Protect an unencrypted document with an AES-256 opening password.
25 MB per file50 MB total input / output300 pages · 45 secondsUp to 1 PDF
- 1Upload
- 2Configure
- 3Process
- 4Download
1. Upload your files
Drop PDFs here
PDF files only. No remote URLs.
Files stay in your browser. Processing begins when you choose the action.
No files selected. Add documents to begin.