coru / Field notes

Everyday documents

Useful ideas. Room to explore.

Everyday documents

Extract and merge PDF pages: use positions, not printed numbers

Build an exact PDF page selection locally with qpdf. A tested example separates physical positions from printed numbers and checks page order, text and labels.

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Everyday documents

PDF search misses words: check the page before running OCR

Make an existing scan searchable with NAPS2, then test each page. Original English and Russian samples show why an existing text layer can hide an OCR gap.

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