Protect PDF
Password-protect a PDF with AES-256 encryption to restrict access.
Works entirely in your browser — nothing to installFiles processed privately in an isolated workerAuto-deleted 60 minutes after uploadNo account required to start
Upload files
Drag & drop files here, or click to choose from your device.
Accepted: PDF
Maximum 25 MB per file, up to 1 file. Files are temporary and expire automatically after the configured retention window.
Password settings
The user password controls who can open the PDF. The owner password controls permissions like printing and copying — leave blank to use the same password for both.
Accepts PDFUp to 25 MB
About this tool
Add a password to any PDF so only people with the key can view it.
Common uses
Secure sensitive contractsLock financial statementsProtect confidential reports
Good to know
Files never leave the secure pipelineAuto-deleted 60 minutes after uploadNo account required to start
Frequently asked questions
AES-256, the same standard used by banks and governments.