Calibre [1] can do a reasonably good job on most types of PDF files,
but a lot depends on the type of PDF file you want to convert. PDF
is essentially a container format, and as expected, it can contain
a whole lot of different types of data such as images, text, fonts,
scripting, and much more. The results you'll get from Calibre (or
any other conversion tool) will depend heavily on the types of data
within the PDF file you want to convert, and also on what kind of
output you want to generate.
Not really. The problem is that PDF is basically a destination format. Converting to PDF strips all of the semantics out of it, leaving you with plain text, fonts, and boxes. The latest versions of the official Adobe Acrobat Reader are able to convert PDF to Doc but I have no idea what the quality is like.
Every time I have used Acrobat to convert PDF to Word, the only usable parts have been the tables. The rest is generally garbage.
Fortunately, the tables were the only parts I wanted! I needed to get them from the PDF into text (csv) form. So, from Word, I copied the tables, pasted them into Excel, and saved that as csv. Easy as 1-2-3-4-5!
