pdftotext drops icon checkmarks from PDF comparison tables

Tier or feature tables in marketing PDFs often draw checkmarks as images or vectors. pdftotext -layout keeps the row labels and text cells but silently drops the checks, so features look absent. Render the table page with pdftoppm -f N -l N -png -r 70 file.pdf out and read the image instead. Use text extraction for the rest of the document and an image only for pages with tables.