(Edit: from the other thread I understand roel_v's definition of an ebook includes "chapter titles and paragraphs" and all the formatting, not just a readable epub file which was my definition)
I've done it, it was not a one-step process, the results were not pretty but it was readable.
It's not a Hard problem (unless you mean Hard to do automatically and get good results, in which case I agree).
I've got the tools at home, but I took the steps from the Mobileread forums.
One possibility I just read there is, if you have a scanned PDF, PDF text extractor, then Use OpenOffice to save as epub.
Also, you can just skip all that and just read the PDF from the ebook reader.
I've done it, it was not a one-step process, the results were not pretty but it was readable.
It's not a Hard problem (unless you mean Hard to do automatically and get good results, in which case I agree).
I've got the tools at home, but I took the steps from the Mobileread forums.
One possibility I just read there is, if you have a scanned PDF, PDF text extractor, then Use OpenOffice to save as epub.
Also, you can just skip all that and just read the PDF from the ebook reader.