See what a PDF's bytes say about its history

Forensic fraud signals for statements, payslips and proofs of address — free checker, developer API. Risk signals, never verdicts.

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No account needed to check a file · 25 free API calls/month · nothing is stored

  1. Drop a PDF. Parsed in memory, never written to disk.
  2. Read the signals. Each one shows the raw evidence behind it.
  3. Automate via API. One POST returns the same JSON report.

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Max 20 MB · processed in memory, never saved

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Three fictional utility statements. Their reports are precomputed, so they cost nothing and take no upload.