ArQave – Extract Archaeological Data from PDF

Upload & process PDF

For best results, use high-quality PDFs with clearly structured tables (context sheets, finds logs, material lists, etc.).

PDF file

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Quality filters for extracted tables

To keep the output usable, tables go through a series of quality checks. A table is rejected and excluded from the final file if it matches one or more of the following:

Empty – contains no data rows.
Too small – smaller than 2 rows × 2 columns.
Too sparse – more than ~40% of cells are empty.
Noise-like – more than ~30% of cells are just punctuation (dashes, dots, etc.).

Tip: PDFs exported directly from spreadsheets or structured reports (not scanned as images) usually yield the cleanest results.