When trying to read a PDF on a bigger screen phone, I like to quickly zoom to a level that maximises utilization of my screen real estate, so that I can see biggest font without having to scroll horizentally.
That is to a level that I don't see any of the right or left margins of the page. The app should lock the zoom and horizontal movement when working in this mode. The user can only scroll up/down or jump to a page.
I have seen this working perfectly on default PDF reader on iPhone 6+. I have tested multiple PDF readers:
- Google Drive PDF Reader
- Adobe PDF Reader
- Drive PDF Reader
- Think Free Viewer
- PDF Reader by Ivan Ivanenko (is able to lock horizontally, but not easy to use without auto zooming side)
- RadaeePDF Viewer
I also installed some other popular PDF viewers on the market. None of them had this feature.This seems to be many users' question:http://androidforums.com/threads/why-do-all-android-pdf-readers-suck.269259/
edit: the Reflow function offered by many PDF readers does not work well for books that are not mainly plain text. Also I have found Reflow very slow for my big books