Error in converting a pdf document to a Word document

Question

I have Adobe Acrobat 6 running under Win XP.
My Panasonic Lumix camera manual is a pdf file that I wish to place on my Kindle 4. I copied the pdf file across but, although Kindle is supposed to be able to handle pdf files, it wouldn't with this one - it simply froze when I opened it in the Kindle. I therefore decided to convert the pdf file to a Word document file and email it to Amazon for a free conversion to a Kindle azw file. I attempted to use Save As in Acrobat to save the pdf file as a doc file but, after a few pages, I got the error message:
Bad pdf; could not read page structure. <Bad pdf; error in processing fonts: cannot find CMap resource file> [26-27].

Answer 1

For what it's worth I pulled in some of the product line's user guide PDFs. Those I looked over were authored with FrameMaker or InDesign.
As these both support solid PDF output and from a quick look-see I'd not attribute the core issue to a poorly created PDF.
With that said; two things are evident. They are not Tagged and, with the heavy graphics content, of a healthy file size.
Tagged PDF is more than a little important as this is what provides the essential ingredient for export of PDF content (retaining font info, format, layout, etc.).
A healthy file size associated with the significant graphics content means that what is "under the hood" of the computer in use is significant as export puts a load on these resources.
Example: A local machine having  integrated graphics is hard pressed compared to a local machine having a dedicated graphics card with a comfortable amount of onboard RAM.
Due to "design" improvements over the years Acrobat X does a much better job of "export"/"save as" for untagged PDF.
But, "export"/"save as" of a well-formed Tagged PDF trumps.
Be well...