Meet PDF Expert for iPhone 4.7 , which now runs on iOS 7 and adds new features!
iCloud sync
Now you can save your documents to iCloud for automatic sync between the iPhone and iPad.
New image viewer
Browse quickly through your photos with swipes or using image previews.
Drag & drop files
Now you can move files and folders using Drag & Drop.
The update is free for all existing users of PDF Expert for iPhone.
You can download it here.