tuesday I’m unable to summarize this PDF, which is quite legible, so I imagine should be possible to OCR: https://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?db_key=AST&bibcode=1998JHA....29....1G&letter=0&classic=YES&defaultprint=YES&whole_paper=YES&page=1&epage=1&send=Send+PDF&filetype=.pdf It seems to only be seeing the document identifier, and not any page content.