On my Windows and Android tablets there are PDF readers that cover a short list of items that I'm shocked has been very difficult to find on iOS. Some of you must have found one that does the following: 1) Uses the entire screen to view text (most have an annoying transparency on the top and bottom of PDFs). 2) Has some simple pagination which allows you to tap the screen (or use the volume buttons) to turn an entire page. I don't want to swipe pages and have it slide. I want to tap/swipe, press and have the entire page go to the next page. Pretty simple concept. 3) locks the zoom. #3 most have. #1 is surprisingly very difficult to find. #2 I haven't yet found and went through several PDF apps. Things like Dataviz' documents to go - a standard for a long time - is pitiful when it comes to PDFs. Spreadsheets are OK and document editing decent too but that is where it ends. I found a couple of free (pay to upgrade) readers that do two of the three but never pagination. What do you guys use to read PDFs?