@HarryT I thought that the main problem with 6 inch ereader is that they put a huge margin around pdf files which makes text small and difficult to read.but for rooted kindle touches there is an app called JBPATCH-here is the link of forums:
http://https://www.mobileread.com/for...d.php?t=175512 and here is the link for the wiki:wiki.mobileread.com/wiki/JBPatch.go to page 9 of the forums link and scroll down to see the effects it has on pdf files.this app allows you to delete those margins,thus making the text,bigger,easier to read and thus providing a marginally better pdf reading experience than other 6 inch ereader which have zoom and a pdf-rearrange function which messes up everything.a rooted kindle touch can handle upto A4 size pdfs without margins easily.please check out the links and page nos i have given you if you dont believe me.here is the link where the margins patch post is.please check the screen shots carefully:
http://https://www.mobileread.com/for...&postcount=123