PDF Modify is your mobile editor for PDF merge and much more.

The app offers the following features:
- Add pages, insert empty pages or a picture from the photo library
- Delete PDF, remove unnecessary pages
- Merge PDF, single pages or multiple documents (Pro feature, requires in-app purchase)
- Reorder PDF, change position of every page (Pro feature, requires in-app purchase)
- Duplicate PDF, duplicate single pages (Pro feature, requires in-app purchase)
- Rotate PDF, flip pages in steps of 90° angle (Pro feature, requires in-app purchase)
- Support for iCloud Drive and Files app
- Undo and redo support
- Open a PDF with PDF Modify
- Sharing a PDF (Export)
- iTunes file sharing
- Built-in PDF previewer