Forensic check

HTPBE_IMAGE_EDITED_AND_RESAVED

HTPBE_IMAGE_EDITED_AND_RESAVED appears on 0.3% 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

Image Forensics

Embedded image showing signs of having been edited and re-saved.

Share of modified results
0.3%
Frequency rank
#36
Among the 56 markers seen in modified results
Certain confidence
36.7%
Of results with this marker rated certain rather than high
Fires alone
53.3%
Results where it is the only marker found

Marker profile

What HTPBE_IMAGE_EDITED_AND_RESAVED tells you

HTPBE_IMAGE_EDITED_AND_RESAVED is one of the named findings returned in modification_markers when a PDF is reported as modified. It belongs to the Image Forensics group of checks. These checks look at embedded images and scan-like pages for editing, re-saving or a capture origin that does not hold up.

On 53.3% of the modified results that carry HTPBE_IMAGE_EDITED_AND_RESAVED it is the only marker. A result with this marker carries 2.0 markers on average. It is most often found together with HTPBE_CONTENT_STREAM_EDITING_MARKERS, on 23.3% of these results.

Example API response

How it appears in a result

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

Full schema in the API reference →

Distributions

What ships alongside HTPBE_IMAGE_EDITED_AND_RESAVED

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

Common Producers

SECnvtToPDF writes 23.3% of these results – and 53.8% of all modified results naming it carry this marker.

SECnvtToPDF53.8% of its modified23.3%
GPL Ghostscript20.7% of its modified20.0%
macOS Print to PDF0.7% of its modified13.3%
Rendering Engine37.5% of its modified10.0%

Common Creators

Scanner TOSHIBA is the Creator on 23.3% of these results.

Scanner TOSHIBA46.7% of its modified23.3%
UnknownApplication40.0% of its modified13.3%
Vault Rendering Engine27.3% of its modified10.0%

Often found together with

HTPBE_CONTENT_STREAM_EDITING_MARKERS sits next to HTPBE_IMAGE_EDITED_AND_RESAVED more often than any other marker.

Document origin

Institutional43.3%
Scanned30.0%
Consumer software16.7%

Creator → Producer pairs

Scanner TOSHIBA → SECnvtToPDF23.3%
UnknownApplication → GPL Ghostscript13.3%
Vault Rendering Engine → Rendering Engine10.0%

Detected origin software

macOS / iOS (Quartz)13.3%

Confidence of the verdict

Certain36.7%
High63.3%

When these results were checked

April 202626.7%
May 202613.3%
June 202616.7%
August 202620.0%
September 20266.7%
October 202610.0%
November 20266.7%

Document length

1 page66.7%
2–5 pages16.7%
6–20 pages16.7%

File size

Under 100 KB30.0%
100 KB – 1 MB46.7%
1 – 5 MB23.3%

PDF versions

PDF 1.756.7%
PDF 1.316.7%
PDF 1.413.3%
PDF 1.613.3%

Year the document says it was created

202680.0%

Long tail

Notable observations

Smaller cuts of the results carrying HTPBE_IMAGE_EDITED_AND_RESAVED – 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
13.3%

Of files contain earlier saved revisions

Embedded JavaScript
0%

Of files contain JavaScript code

Embedded files
3.3%

Of files have attachments inside

Avg pages per document
3.1
Markers per result
2.0

Average number of markers on these results

FAQ

HTPBE_IMAGE_EDITED_AND_RESAVED: common questions

What does HTPBE_IMAGE_EDITED_AND_RESAVED mean?

HTPBE_IMAGE_EDITED_AND_RESAVED is a named finding in an HTPBE? result: embedded image showing signs of having been edited and re-saved. It is returned in the modification_markers list of a modified result and belongs to the Image Forensics group of checks.

Does HTPBE_IMAGE_EDITED_AND_RESAVED 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_IMAGE_EDITED_AND_RESAVED?

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_IMAGE_EDITED_AND_RESAVED?

HTPBE_IMAGE_EDITED_AND_RESAVED appears on 0.3% 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_IMAGE_EDITED_AND_RESAVED?

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

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