How PDF Fraud Works and Why PDFs Are a Favorite Tool for Fraudsters PDFs are widely trusted because they preserve layout, fonts and images across platforms, but that same consistency hides a variety of manipulation techniques that enable fraud. Fraudsters exploit the fact that a PDF can combine scanned images, editable text layers, embedded fonts, hidden metadata and attachments. A single document might contain an image of a legitimate invoice overlaid with an edited text layer that changes totals, bank account numbers or invoice dates without altering the visible appearance of the page, making casual inspection unreliable. Understanding how PDFs are constructed is critical. A document includes a cross-reference table,…