Adobe Producer Spoofing: A PDF Metadata Forgery Case Study

A PDF forgery case study shows how attackers can manipulate the 'Producer' metadata field to make a tampered PDF appear as if it was created by Adobe, a trusted software. This is a common tactic used to bypass metadata-only checks. To detect this, a structural approach is needed, such as the HTPBE_PRODUCER_IDENTITY_FORGED marker, which can catch the contradiction left behind by the attacker. This highlights the limitations of relying solely on metadata checks for fraud detection and the need for more robust methods.