It is designed to help you read and annotate scientific papers in PDF, but is also great for viewing any PDF file.Įxplore the links to the left to investigate Skim and consider helping out with the project. Skim is a PDF reader and note-taker for OS X. PDF: Which Book Format Should You Use Mac: Open the Kindle desktop app and drag a MOBI file onto the Dock icon. Previous Versions Choose Latest Lion Version: 1.5.13 Current Version: 1.6.5 Download Release Notes OS X 10.10 or higher