Marseille Image Festival and e-book

I had hoped to present my electronic book (diving from the edge) at the underwater image festival in Marseille… well, it failed! Contrary to what I had been hinted at, it seems that an electronic book is not a book and that the jury does not have a "reader"! Quite funny, when you know that the "book" is in PDF, that is to say, an almost universal format, readable by PCs, Macs and tablets, unlike the e-pub format.