Add your PDF file
Choose a file from this device or drag it into the converter above.
AES-256 encryption
Protect a PDF with a password
Encrypt the file locally and choose which reader actions remain allowed. Files stay on this device.
Drop a PDF here or click to choose
One PDF file at a time
3 credits per successful account conversion
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Three simple steps
How to use Protect PDF
Run the conversion
Review the available options, then start the browser-based process.
Download PDF
Preview the result when available and save it back to your device.
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One site-wide count; files and filenames are never sent.
How was this converter?
Stored only in this browser
Why use PDF Converter
Helpful conversion tools without the usual friction
Start free — no trial
No account, payment details, trial, or subscription step.
Files stay on this device
Conversion runs in the browser instead of uploading source files to PDF Converter.
No server copy to delete
Because the file is not uploaded, PDF Converter has no server-side file copy awaiting deletion.
Useful across modern browsers
Designed for current desktop and mobile browsers, with format-specific limits shown clearly.
Focused workflows
Go from source to downloadable result without installation or an account.
A practical conversion suite
22 focused tools for PDF, photos, GIF, TIFF, WebP, and SVG work.