Looking for a solution to this "missing feature" in FB : http://fogbugz.stackexchange.com/questions/9798/feature-request-ability-to-export-a-case-to-pdf-and-word-formats
I have the paid, fancy version of Acrobat. It installs a button into the browser to create PDF files from web pages.
It makes beautiful PDFs! For example the youtube.com home page renders to a very attractive PDF with all images, etc.
However, when I am on an FB case with png attachments (screen shots) that renders perfectly in the browser, the PDF converter fails to embed the images.