A big part of my work right now is working with PDFs, usually very large PDFs and multiple at one time. For years I've been fine with Preview, but since Apple broke it in El Captain* and has neglected to fix it, I've been looking for a replacement app. I've used PDF Expert on iOS for years and currently use it every day, so naturally I was curious about their Mac application, but it hasn't had stellar reviews. Before I waste $20 on a so-so application I wanted to get feedback from current users. How has PDF expert for OS X worked for you compared to Preview? One nic thing is that sometimes annotations wouldn't render perfectly between PDF Expert and Preview (resized text boxes, etc.) so 100% compatibility would be nice. EDIT: the current version has good reviews, but up until now it has been 3/3.5 stars. Thank you for the feedback. *Blurry rendering, 4+ GB of RAM usage, crashes, etc.