split

PDFsam, a desktop application to split, merge, mix, rotate PDF files and extract pages

A powerful and easy to use segmented view (segmentedcontrol, pagingview, pagerview, pagecontrol, categoryview) (腾讯新闻、今日头条、QQ音乐、网易云音乐、京东、爱奇艺、腾讯视频、淘宝、天猫、简书、微博等所有主流APP分类切换滚动视图)

:chart_with_upwards_trend: The Rack Based A/B testing framework