What user sjr said on https://stackoverflow.com/questions/4643438/how-to-search-contents-of-multiple-pdf-files
find /path -name '*.pdf' -exec sh -c 'pdftotext "{}" - | grep --with-filename --label="{}" --color "your pattern"' \;
George Georgovassilis writes about information technology architecture
What user sjr said on https://stackoverflow.com/questions/4643438/how-to-search-contents-of-multiple-pdf-files
find /path -name '*.pdf' -exec sh -c 'pdftotext "{}" - | grep --with-filename --label="{}" --color "your pattern"' \;