on The Digital Reader:

In my morning coffee link post this morning I included a post on The Book Designer where a so-called “expert” made various claims about PDFs, including that PDFs aren’t ebooks and that PDFs “can’t be uploaded to any of the major ebook commercial retailer sites”.

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Yes, you can upload and sell PDF in the major ebookstores – some of them, anyway. Amazon accepts PDFs, and so does Google. Barnes & Noble used to accept PDFs, but according to their current help pages they no longer do so.

And there are even times where you should sell a PDF. For example, there are certain types of non-fiction that just work better in a fixed layout format, and frankly a PDF is still more versatile and accessible than a fixed layout Epub.