Well I tried and I gave up. Using Adobe Acrobat, it crashes when trying to export to HTML 4.01 with CSS, to HTML 3.2 or even to Word. It processes all the pages but then crashes when building the file.

Why you want to convert a perfectly decent and convenient PDF file into one thousand, three hundred and twenty six webpages is beyond me. But, I don't think I can help. That's my only PDF authoring tool and I know of no freeware tool.