What is HTPBE and what does it do?

HTPBE (Has This PDF Been Edited) is a free online service that helps you verify whether a PDF document has been modified or tampered with. Simply upload your PDF file and get an instant yes/no answer about its authenticity.

The service analyzes the PDF’s internal structure, metadata, and creation history to detect any signs of post-creation modifications. This is especially useful when you need to verify the authenticity of important documents you receive from others.

Common scenarios: verifying payment confirmations from buyers, checking invoice authenticity, validating certificates and diplomas, confirming contract integrity, and detecting screenshot manipulations.

You don’t need technical knowledge to use HTPBE—just upload your PDF and get clear results in seconds. The service is completely free, requires no registration, and works with PDF files up to 10 MB.