How it affects the score
A valid signature subtracts up to 20 points, scaled by confidence.
All signals
File structure layer
Digital signature intact
pdf_signed_valid
The PDF is signed and nothing changed after signing. This lowers the score. It does not prove who signed it.
- Severity
- info
- Weight
- -20 (lowers score)
- Layer
- File structure
- Max effect
- -20 points
Innocent explanations
This is a positive signal: nothing changed after signing. It does not prove who signed.
What to do
No action needed for this signal.
Other file structure signals
PDF producer mismatchpdf_producer_mismatchModified after creationpdf_modified_after_creationSaved again after creationpdf_incremental_updatesInconsistent fontpdf_font_inconsistencyText covered or overlaidpdf_text_overlayVisible text differs from text layerpdf_text_layer_mismatchProducer newer than the documentpdf_anachronistic_producerDigital signature brokenpdf_signature_invalidActive contentpdf_active_content
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