title_body: PRS-T2 very slow with some PDFs
upvoted_answer: You should consider converting these to EPUB files instead of PDF. My experience with Sony is that the EPUB files are handled much better (and faster).
  
  You can use Calibre to convert DOCX, ODT and RTF formats directly, if you have the files in some other format you can use LibreOffice to convert them first to DOCX (make sure you have an up-to-date version of Calibre, older versions only supported RTF).
  
  Another alternative is to use pandoc for conversion from DOCX or ODT, but you would have to try to make sure if images are correctly converted.