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Forensic check

HTPBE_IDENTITY_OVERWRITTEN

HTPBE_IDENTITY_OVERWRITTEN appears on 0.1% of modified results in our corpus. A marker is evidence about the file, not a judgement about the person who sent it.

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Marker profile

Generator Fingerprinting

Origin information replaced with that of different software.

Share of modified results
0.1%
Frequency rank
#42
Among the 56 markers seen in modified results
Certain confidence
0%
Of results with this marker rated certain rather than high
Fires alone
57.1%
Results where it is the only marker found

Marker profile

What HTPBE_IDENTITY_OVERWRITTEN tells you

HTPBE_IDENTITY_OVERWRITTEN is one of the named findings returned in modification_markers when a PDF is reported as modified. It belongs to the Generator Fingerprinting group of checks. These checks compare the software a file claims to come from with what the file itself shows about how it was produced.

On 57.1% of the modified results that carry HTPBE_IDENTITY_OVERWRITTEN it is the only marker. A result with this marker carries 1.6 markers on average. It is most often found together with HTPBE_IMPOSSIBLE_TIMESTAMP, on 21.4% of these results.

Example API response

How it appears in a result

When a PDF is reported as modified, HTPBE_IDENTITY_OVERWRITTEN is listed in modification_markers next to the verdict and its confidence. Each marker is a named, actionable finding – not a score.

GET /api/v1/result/{id}
{
  "id": "9f3a2c1d-8b47-4e6f-a012-3d5e7f890123",
  "status": "modified",
  "modification_confidence": "high",
  "modification_markers": [
    "HTPBE_IDENTITY_OVERWRITTEN"
  ],
  "creator": "Adobe Acrobat Pro DC",
  "has_incremental_updates": true,
  "page_count": 3
}

Full schema in the API reference →

Distributions

What ships alongside HTPBE_IDENTITY_OVERWRITTEN

The tools, formats and document traits that appear on the modified results carrying this marker. Shares are of those results.

Common Producers

PDFium writes 100.0% of these results – and 6.2% of all modified results naming it carry this marker.

PDFium6.2% of its modified100.0%

Common Creators

PDFium is the Creator on 100.0% of these results.

PDFium5.7% of its modified100.0%

Often found together with

HTPBE_IMPOSSIBLE_TIMESTAMP sits next to HTPBE_IDENTITY_OVERWRITTEN more often than any other marker.

Document origin

Consumer software64.3%
Unknown35.7%

Creator → Producer pairs

PDFium → PDFium100.0%

Detected origin software

Browser (Print to PDF)64.3%

Confidence of the verdict

High100.0%

When these results were checked

April 202621.4%
May 202614.3%
July 202614.3%
August 20267.1%
September 202614.3%
October 202614.3%
November 202614.3%

Document length

1 page50.0%
2–5 pages21.4%
6–20 pages28.6%

File size

Under 100 KB42.9%
100 KB – 1 MB50.0%
1 – 5 MB7.1%

PDF versions

PDF 1.7100.0%

Year the document says it was created

202671.4%

Long tail

Notable observations

Smaller cuts of the results carrying HTPBE_IDENTITY_OVERWRITTEN – useful context, but treat each row as a single data point rather than a strong signal.

Digitally signed
0%

Of files carry at least one digital signature

Saved revisions
0%

Of files contain earlier saved revisions

Embedded JavaScript
0%

Of files contain JavaScript code

Embedded files
0%

Of files have attachments inside

Avg pages per document
3.9
Markers per result
1.6

Average number of markers on these results

Related checks

Other Generator Fingerprinting checks

Checks from the same group. Each card links to its own reference page.

HTPBE_TOOL_VS_STRUCTURE_MISMATCHStructural evidence that contradicts the file’s stated origin
Share of modified14.8%
HTPBE_FONT_VS_TOOL_MISMATCHFont handling that points to a different producer
Share of modified0.1%
HTPBE_RESIDUAL_PRIOR_GENERATOREvidence of an earlier production history behind the current file
Share of modified0.4%
HTPBE_EDITING_TOOL_FINGERPRINTFingerprints of PDF editing software
Share of modified5.2%
HTPBE_DOCUMENT_RESTAMPED_AFTER_CREATIONDocument re-saved by another tool after its original creation
Share of modified0.1%
HTPBE_ONLINE_EDITOR_ORIGINSigns of processing by an online PDF editing or conversion service
Share of modified2.2%
HTPBE_SELECTIVE_IDENTITY_EDITOrigin information partly removed or edited
Share of modified0.3%
HTPBE_UNKNOWN_IDENTITY_CLAIMMetadata showing signs of having been rewritten
Share of modified1.5%
HTPBE_SCRIPTING_ON_REEMITTEDActive scripting added to the document after its original creation
Share of modified<0.1%
HTPBE_LAYERED_IDENTITY_DISAGREEMENTClaims about the producing software that do not hold up
Share of modified0.5%
HTPBE_IMPOSSIBLE_TOOL_PIPELINEAn implausible chain of production softwareHTPBE_IDENTITY_BLANKEDIdentifying details stripped from the document after production
Share of modified14.5%
HTPBE_DESIGN_TEMPLATE_ASSEMBLYPage content composed from separately produced parts
Share of modified16.5%
HTPBE_ALTERED_TYPEFACE_IDENTITYA font whose identity appears alteredHTPBE_TOOLCHAIN_DEFAULT_METADATA_RESIDUETraces of other software in the document’s productionHTPBE_PRINT_PIPELINE_TAMPERINGSigns of alteration in a document that was re-printed to PDFHTPBE_FONT_LAYER_INCONSISTENT_WITH_ISSUERTypography indicating the document was not produced by its stated issuer
Share of modified0.1%
HTPBE_PRODUCER_IDENTITY_FORGEDFabricated origin details that misstate how the document was produced
Share of modified0.1%

FAQ

HTPBE_IDENTITY_OVERWRITTEN: common questions

What does HTPBE_IDENTITY_OVERWRITTEN mean?

HTPBE_IDENTITY_OVERWRITTEN is a named finding in an HTPBE? result: origin information replaced with that of different software. It is returned in the modification_markers list of a modified result and belongs to the Generator Fingerprinting group of checks.

Does HTPBE_IDENTITY_OVERWRITTEN mean the document is fake?

No. A marker is evidence about the file, not a judgement about the person who sent it. It records that the file shows this pattern; it does not say why, and it does not assess what the document states. Read it together with the verdict and any other markers on the same result.

What should I do when a result contains HTPBE_IDENTITY_OVERWRITTEN?

Ask the sender for the original file straight from the issuing system, or request a fresh copy from the issuer. Check whether the document went through a later step such as re-saving, merging or converting, and verify it with the issuer before relying on it for a decision.

How common is HTPBE_IDENTITY_OVERWRITTEN?

HTPBE_IDENTITY_OVERWRITTEN appears on 0.1% of the modified results in the HTPBE? corpus. The corpus consists of PDFs people chose to submit for checking, so it skews towards documents someone had a reason to doubt and is not a sample of all PDFs.

Where do I see HTPBE_IDENTITY_OVERWRITTEN?

In the modification_markers list of the result returned by the HTPBE? API, and on the result page of a modified document. Other checks in the Generator Fingerprinting group are listed below on this page; all 63 checks are listed on the how-it-works page.

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