I don't know anything about the Kindle DX, but I do think K2pdfopt is an essential piece of software for reading PDFs on an e-reader (I have a Kobo Glo). It al

I don't know anything about the Kindle DX, but I do think K2pdfopt is an essential piece of software for reading PDFs on an e-reader (I have a Kobo Glo). It allows you to reflow the text, and convert two column text into a single column. Even image based (scanned) PDFs. http://www.willus.com/k2pdfopt/ http://www.willus.com/k2pdfopt/