When I created the PDF translator at PauldingNet, the library I used was current with the PDF standard.
Shortly after that, Adobe introduced a new version of the PDF file. Craig used a later version of the same library I used, in creating the PDF translator here at Domania.
Since then, Adobe introduced another version of the PDF specification. Unfortunately, the library version that can handle those files uses external style sheets, and thus is not useful with WebTV.
Adobe's introduced still another version since, and the folks that made the library both Craig and I used are no longer maintaining it.
I could "upgrade" the PDF tool here at Domania, so it can handle more PDF files, but only by shutting out WebTV users entirely, but it's still going to be useless with the newer PDF files being generated these days.
Every couple of months, I go on a search, trying to see if someone else has released a new library to work with PDF, but I'm not hopeful. I think the big reason for translating PDF into HTML was that it was faster to download over dialup, but with dialup on its last legs, nobody else wants a library like that.

