What is HTPBE and what does it do?
HTPBE (Has This PDF Been Edited) is a free online service that detects whether a PDF document has been modified after it was originally created. Upload your PDF and get an instant result in seconds.
The service analyzes the PDF’s internal structure, metadata, and creation history to detect any signs of post-creation modifications. Results come in three states: Intact (no modification found), Modified (modification detected), or Cannot Verify (the PDF was created with consumer software such as Microsoft Word or Google Docs, where anyone can create a document from scratch).
Common scenarios: verifying payment confirmations from buyers, checking invoice integrity, validating certificates and diplomas, confirming contract integrity, and detecting document tampering.
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.