If you extract text from PDFs each week, keep a checklist for page count, reading order, tables, footnotes, and repeated headers. Test one text-heavy page and one complex layout page from each new document type. Compare the extraction with the original PDF before stripping headers, since an overbroad cleanup rule can remove real content. Note whether a document is scanned and needs OCR. Consistent checks catch changes in source formatting that a successful download cannot reveal.
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