Hello Pino Toscano and all interested in pdftohtml, The concern I reported has been solved and pdftohtml now has option -dataurls. This option indicates that images are embedded in the html text as Base64 encoded pixelmaps. HTML documentation refers to such embedded image by the abstruse term "data URL".
This allows one PDF file to be converted to one HTML file. Thx, ... P. -- VoIP: +1 604 670 0140 work: https://en.wikibooks.org/wiki/User:PeterEasthope