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Forensic check

HTPBE_RESIDUAL_DOCUMENT_STRUCTURE

HTPBE_RESIDUAL_DOCUMENT_STRUCTURE appears on 1.2% 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

Document Assembly

Remnants of a different document inside this file.

Share of modified results
1.2%
Frequency rank
#23
Among the 56 markers seen in modified results
Certain confidence
0%
Of results with this marker rated certain rather than high
Fires alone
98.4%
Results where it is the only marker found

Marker profile

What HTPBE_RESIDUAL_DOCUMENT_STRUCTURE tells you

HTPBE_RESIDUAL_DOCUMENT_STRUCTURE is one of the named findings returned in modification_markers when a PDF is reported as modified. It belongs to the Document Assembly group of checks. These checks look at whether a document reads as one coherent production or as pages and parts brought together from several places.

On 98.4% of the modified results that carry HTPBE_RESIDUAL_DOCUMENT_STRUCTURE it is the only marker. A result with this marker carries 1.0 markers on average.

Example API response

How it appears in a result

When a PDF is reported as modified, HTPBE_RESIDUAL_DOCUMENT_STRUCTURE 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_RESIDUAL_DOCUMENT_STRUCTURE"
  ],
  "creator": "Adobe Acrobat Pro DC",
  "has_incremental_updates": true,
  "page_count": 3
}

Full schema in the API reference →

Distributions

What ships alongside HTPBE_RESIDUAL_DOCUMENT_STRUCTURE

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

Common Producers

PDFOUT writes 100.0% of these results – and 94.0% of all modified results naming it carry this marker.

PDFOUT94.0% of its modified100.0%

Common Creators

ADP is the Creator on 100.0% of these results.

ADP89.4% of its modified100.0%

Document origin

Institutional98.4%

Creator → Producer pairs

ADP → PDFOUT100.0%

Confidence of the verdict

High100.0%

When these results were checked

April 202698.4%
July 20261.6%

Document length

1 page98.4%
2–5 pages1.6%

File size

Under 100 KB100.0%

PDF versions

PDF 1.4100.0%

Year the document says it was created

2026100.0%

Long tail

Notable observations

Smaller cuts of the results carrying HTPBE_RESIDUAL_DOCUMENT_STRUCTURE – 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
1.0
Markers per result
1.0

Average number of markers on these results

Related checks

Other Document Assembly checks

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

HTPBE_PAGES_FROM_MULTIPLE_SOURCESPages assembled from more than one source
Share of modified9.1%
HTPBE_MIXED_TOOLING_CLASSESPages that went through different production routes in one document
Share of modified2.5%
HTPBE_SCAN_IN_DIGITAL_DOCImage-based page content mixed into a digitally produced document
Share of modified1.3%
HTPBE_REEXPORTED_THROUGH_OFFICE_SUITEPages re-exported from an existing PDFHTPBE_MIXED_PAGE_DIMENSIONSPage layout evidence of pages combined from separate documents
Share of modified2.5%
HTPBE_TEMPLATE_PATTERN_BREAKPage template evidence of pages from another sourceHTPBE_REBUILT_FROM_LOCAL_SOURCEDocument reconstructed as a new file rather than produced as the original
Share of modified0.1%

FAQ

HTPBE_RESIDUAL_DOCUMENT_STRUCTURE: common questions

What does HTPBE_RESIDUAL_DOCUMENT_STRUCTURE mean?

HTPBE_RESIDUAL_DOCUMENT_STRUCTURE is a named finding in an HTPBE? result: remnants of a different document inside this file. It is returned in the modification_markers list of a modified result and belongs to the Document Assembly group of checks.

Does HTPBE_RESIDUAL_DOCUMENT_STRUCTURE 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_RESIDUAL_DOCUMENT_STRUCTURE?

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_RESIDUAL_DOCUMENT_STRUCTURE?

HTPBE_RESIDUAL_DOCUMENT_STRUCTURE appears on 1.2% 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_RESIDUAL_DOCUMENT_STRUCTURE?

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 Document Assembly group are listed below on this page; all 63 checks are listed on the how-it-works page.

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