Verify a certificate

Drop a PDF certificate produced by PowerPack Sanitizer. This page checks its digital signature and shows who issued it and what it records. The file never leaves your computer.

What a valid signature proves: the PDF was produced by a PowerPack Sanitizer copy licensed to the organization shown, and not one byte has changed since. It does not prove anything the certificate itself does not state; read the result and limitations on the certificate. Re-saving or printing to PDF creates a new, unsigned file, so always keep and share the original.