Now that there are manuals in online form already, why not make ebooks of them (epub + mobi). Is there no demand?
There are several online services that will convert PDF to the epub and mobi formats.
Yes there are. And the results are subpar . Especially for a manual with over 1000 pages there is a lot of rework. But with access to the source document you are able to create perfect ebooks.
Fair enough. Honestly, I just googled pdf to mobi and saw several results. I’ve never actually tried to use them. Sorry I couldn’t be of more help.