-dataurls is definitely a valuable addition. Thanks. One further detail is worth attention. The man page notes "-c generate complex output". For at least one HTML file here, "pdftohtml -dataurls -c -s <file>.pdf" and "pdftohtml -dataurls -s <file>.pdf" produce the same output. Therefore when -dataurls is used, -c may have no effect.
Therefore the manual page should explain -c with more than "generate complex output". Thanks again, ... P. mobile: +1 778 951 5147 VoIP: +1 604 670 0140 https://en.wikibooks.org/wiki/User:PeterEasthope