Forensic check

HTPBE_ANNOTATION_PREDATES_CREATION

HTPBE_ANNOTATION_PREDATES_CREATION appears on 0.8% 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

Metadata & Timestamps

Annotation dates that do not fit the document’s timeline.

Share of modified results
0.8%
Frequency rank
#27
Among the 56 markers seen in modified results
Certain confidence
0%
Of results with this marker rated certain rather than high
Fires alone
1.3%
Results where it is the only marker found

Marker profile

What HTPBE_ANNOTATION_PREDATES_CREATION tells you

HTPBE_ANNOTATION_PREDATES_CREATION is one of the named findings returned in modification_markers when a PDF is reported as modified. It belongs to the Metadata & Timestamps group of checks. These checks compare the dates and descriptive properties recorded in a file with each other and with a plausible production history.

On 1.3% of the modified results that carry HTPBE_ANNOTATION_PREDATES_CREATION it is the only marker. A result with this marker carries 2.0 markers on average. It is most often found together with HTPBE_PAGES_FROM_MULTIPLE_SOURCES, on 95.0% of these results.

Example API response

How it appears in a result

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

Full schema in the API reference →

Distributions

What ships alongside HTPBE_ANNOTATION_PREDATES_CREATION

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

Common Producers

iOS Print to PDF writes 97.5% of these results – and 26.0% of all modified results naming it carry this marker.

iOS Print to PDF26.0% of its modified97.5%

Common Creators

Microsoft Word is the Creator on 95.0% of these results.

Microsoft Word6.9% of its modified95.0%

Often found together with

HTPBE_PAGES_FROM_MULTIPLE_SOURCES sits next to HTPBE_ANNOTATION_PREDATES_CREATION more often than any other marker.

Document origin

Consumer software98.8%

Creator → Producer pairs

Microsoft Word → iOS Print to PDF95.0%

Detected origin software

Microsoft Word95.0%
macOS / iOS (Quartz)3.8%

Confidence of the verdict

High100.0%

When these results were checked

April 202695.0%
May 20261.3%
June 20261.3%
July 20262.5%

Document length

1 page97.5%
2–5 pages2.5%

File size

100 KB – 1 MB98.8%
1 – 5 MB1.3%

PDF versions

PDF 1.398.8%

Year the document says it was created

2026100.0%

Long tail

Notable observations

Smaller cuts of the results carrying HTPBE_ANNOTATION_PREDATES_CREATION – 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
1.1
Markers per result
2.0

Average number of markers on these results

FAQ

HTPBE_ANNOTATION_PREDATES_CREATION: common questions

What does HTPBE_ANNOTATION_PREDATES_CREATION mean?

HTPBE_ANNOTATION_PREDATES_CREATION is a named finding in an HTPBE? result: annotation dates that do not fit the document’s timeline. It is returned in the modification_markers list of a modified result and belongs to the Metadata & Timestamps group of checks.

Does HTPBE_ANNOTATION_PREDATES_CREATION 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_ANNOTATION_PREDATES_CREATION?

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_ANNOTATION_PREDATES_CREATION?

HTPBE_ANNOTATION_PREDATES_CREATION appears on 0.8% 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_ANNOTATION_PREDATES_CREATION?

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 Metadata & Timestamps group are listed below on this page; all 63 checks are listed on the how-it-works page.

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