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HTPBE?

Structural PDF tamper detection API. Catches edits your KYC stack misses.

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Status

Algorithm v2.23.1

Tool profile

convert-jpg-to-pdf.net

convert-jpg-to-pdf.net appears on both legitimate first-generation output and downstream re-save flows — context (the other tool on the same document) is what flips the signal.

Back to all statistics
Forensic verdict

Mixed signal

Based on 1 appearance across the HTPBE? corpus.

Modification rate
0%-48pp below baseline
Corpus baseline: 48%
Total appearances
1
0.10% of corpus
Modification rate
0%
-48pp below baseline
Role split
100%C/0%P
Creator vs Producer share of appearances

Corpus profile

How convert-jpg-to-pdf.net shows up in HTPBE? corpus

convert-jpg-to-pdf.net is one of the PDF-handling tools surfaced in the HTPBE? corpus. convert-jpg-to-pdf.net appears predominantly as the original Creator (100% of its occurrences) — i.e. on documents that started life inside convert-jpg-to-pdf.net rather than passing through it as a downstream re-saver.

In the HTPBE? corpus the contextual signal we look for is a producer/creator mismatch: when convert-jpg-to-pdf.net appears as the latest Producer on a document whose Creator was an institutional source (e.g. Adobe PDF Library, Microsoft Word, a banking back-end), the document was rebuilt or re-saved after its original creation. That mismatch is the marker — never the tool itself.

On documents where convert-jpg-to-pdf.net acts as Creator, 0% carry modification markers; on documents where it acts as Producer, 0% do. These are observed rates inside the HTPBE? corpus and should be read as base-rates, not as accusations against convert-jpg-to-pdf.net or its users.

The signal
In the HTPBE? corpus the contextual signal we look for is a producer/creator mismatch: when convert-jpg-to-pdf.net appears as the latest Producer on a document whose Creator was an institutional source (e.g. Adobe PDF Library, Microsoft Word, a banking back-end), the document was rebuilt or re-saved after its original creation. That mismatch is the marker — never the tool itself.

Role in the workflow

How convert-jpg-to-pdf.net shows up in metadata

Every PDF carries a Creator (the application that produced the original document) and a Producer (the engine that wrote the PDF). The same tool can appear in either slot, with very different modification profiles.

CAs Creator · 100%
As Producer · 0%P
CAs Creator
  • Usage
    1
  • Modification rate
    0%
  • Avg file size
    1000 KB
PAs Producer
  • Usage
    0
  • Modification rate
    0%

How to read this

The Creator slot typically reflects where a document started life. The Producer slot reflects whatever wrote the bytes — and is the field that gets overwritten when a PDF is opened, edited, and saved by a downstream tool.

A higher modification rate as Producer than as Creator usually means the tool is acting as a re-saver on documents that originated elsewhere. A higher rate as Creator points to fragile workflows around the original authoring app.

Related profiles

Tools you’ll see next to convert-jpg-to-pdf.net

Other tools that frequently share metadata with convert-jpg-to-pdf.net in the same documents. Each card links to its own forensic profile.

P100% co-occurrence
PDFlib
Appearances287
Mod rate10%

Long tail

Notable observations

Smaller cuts of the convert-jpg-to-pdf.net corpus — useful context, but treat each row as a single data point rather than a strong signal.

Pages parsed
1
Oldest observed
14 Sep 2017 — over 8 years ago

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