Security model
Untrusted files. Carefully contained.
PDFs are complex binary documents. PrivatePDF treats every selected file as untrusted and keeps processing isolated from the page interface whenever the operation supports it.
Local worker isolation
Core page operations run in a dedicated browser worker. A job can be cancelled by terminating that worker, which discards incomplete output.
- No remote executable libraries
- No document content in console logs
- No raw extracted HTML injection
File and output checks
The interface inspects file signatures instead of trusting extensions alone. Generated PDFs are reopened and checked for the expected page count before success is shown.
Resource safety
Your browser and device memory set the practical ceiling. Very large images, deeply nested PDFs, or malformed documents may be rejected or fail safely instead of exhausting the tab.
What we do not claim
This release does not claim secure redaction, certificate-backed digital signatures, password cracking, or compliance-grade PDF/A conversion. Those features require additional audited engines and validation.
Ready when you are