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HTPBE analyzes the binary structure of PDF files to detect post-creation modifications. Upload any PDF and get a verdict — intact, modified, or inconclusive — based on metadata timestamps, Creator/Producer fields, xref revisions, and digital signature status.
Free web tool, no account required. REST API available for automated workflows.
HTPBE.TECHDetect if a PDF was tampered with — in seconds
Iurii Rogulialeft a comment
Hey Product Hunt! 👋 I'm Iurii, the founder of HTPBE. The problem I kept running into: PDFs are the most trusted document format in business — invoices, contracts, diplomas, bank statements. And they're trivially easy to edit. Most people assume a PDF looks legitimate = a PDF is legitimate. That's not true. Any PDF editor can change an amount, a date, a name, and the result is visually identical...
HTPBE.TECHDetect if a PDF was tampered with — in seconds