
When oh when oh when will companies learn that PDF is not an ebook format? It's a standard for printable documents so that the user will see a consistent layout; not an ebook format.
Do not, under any bloody circumstances, try to sell me something labelled an "ebook" and tell me that oh yes, it's compatible with your exact six inch eink ereader, completely compatible, and carefully avoid telling me until I've bought, paid for, and downloaded it, that oh it's actually an unreadable PDF, oops, well, we've got your money now.
I'M LOOKING AT YOU, DIESEL EBOOKS.
And you know, whatever, if some of you, for some bizarre reason, prefer reading your books in PDF format (on large tablets, perhaps?), then bully for you. Just TELL the consumer up front that you're only offering a PDF, before you take their money.