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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

Pages

Pages reads as a institutional generator — its modification rate sits at or below the corpus baseline, consistent with single-pass institutional output.

Back to all statistics
Forensic verdict

Legitimate origin

Based on 8 appearances across the HTPBE? corpus.

Modification rate
13%-35pp below baseline
Corpus baseline: 48%
Total appearances
8
0.10% of corpus
Modification rate
13%
-35pp below baseline
Role split
100%C/0%P
Creator vs Producer share of appearances

Corpus profile

How Pages shows up in HTPBE? corpus

Apple Pages is a macOS / iPadOS word-processing application; its PDF export is single-pass through Apple’s rendering pipeline.

Pages-as-Creator indicates Apple-stack authorship. Low signal on its own.

The signal
Pages-as-Creator indicates Apple-stack authorship.

Role in the workflow

How Pages 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
    8
  • Modification rate
    13%
  • Avg file size
    311 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.

Distributions

What ships alongside Pages

The PDF versions Pages writes when acting as Producer, and the other tools that appear in the same documents.

Common Producers when Pages is the Creator

macOS Print to PDF writes 88% of these files — that pairing is the Adobe-stack default for many institutional pipelines.

macOS Print to PDF87.5%
iOS Print to PDF12.5%

Related profiles

Tools you’ll see next to Pages

Other tools that frequently share metadata with Pages in the same documents. Each card links to its own forensic profile.

P88% co-occurrence
macOS Print to PDF
Appearances747
Mod rate64%
P13% co-occurrence
iOS Print to PDF
Appearances347
Mod rate68%

Long tail

Notable observations

Smaller cuts of the Pages corpus — useful context, but treat each row as a single data point rather than a strong signal.

Pages parsed
32
Oldest observed
10 Jul 2020 — almost 6 years ago

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