@teslas_moustache @klaatu I've tried downloading both the .pdf and .epub versions of a book, and tried opening them with both #ComfortReader and #DocumentViewer. There seems to be no option to change text size or get text to wrap when I zoom in. I'm using an old version of #Android though (4.2.2)
#ComfortReader looks promising, but it doesn't seem to be able to open a .pdf on #Android 4.2.2, and trying to open an .epub made it crash.