IRS EIN Assistant 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 statisticsForensic verdictBased on this tool’s share of the HTPBE? corpus.
Corpus profile
IRS EIN Assistant is one of the PDF-handling tools surfaced in the HTPBE? corpus. IRS EIN Assistant appears predominantly as the original Creator (100% of its occurrences) — i.e. on documents that started life inside IRS EIN Assistant 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 IRS EIN Assistant 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 IRS EIN Assistant acts as Creator, 20% 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 IRS EIN Assistant or its users.
Role in the workflow
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.
Related profiles
Other tools that frequently share metadata with IRS EIN Assistant in the same documents. Each card links to its own forensic profile.
Long tail
Smaller cuts of the IRS EIN Assistant corpus — useful context, but treat each row as a single data point rather than a strong signal.
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