Readdle updated PDF Expert 7 recently, bringing new features like iOS 13’s Dark Mode. Other features include PencilKit for image annotation, multiple windows for better multitasking, and productivity gestures for iPadOS. From the blog post:
PDF Expert 7 features all the new gestures Apple has included in iPadOS. Be it the one-finger tap and drag gesture to select text, the three-finger pinch out to copy or cut text, three-finger swipe left/right to Undo or Redo, or the three-finger tap to bring up the contextual menu — it’s all here on your iPad with PDF Expert.
App Store: PDF Expert 7 – Free