You can find out many useful PDF read apps on App Store. But if you want to cut or splice your PDF files, the following utility app PDF Splicer should be able to meet your requirements.

Utility App PDF Splicer for iPhone, iPad and iPod Touch

PDF Splicer is a practical PDF app developed by Tipirneni Software, and designed for both iPhone and iPad, and to offer you an easy way to merge two or more PDF files or split a PDF file into two or more files on your iPhone, iPod touch or iPad. The universal app has a simple and easy-to-use user interface so you can easily import your PDF files into the PDF app for further edition such as rotating, extracting or deleting pages, you even can insert pages from another PDF file. After merging or splitting your PDF files, you can also export the final file to other app, your Email or via directly printing.

Utility App PDF Splicer for iPhone, iPad and iPod Touch

PDF Splicer with a size of 0.7 MB is compatible with iPhone, iPod touch and iPad running iOS 4.3 or later. The universal app is free for a limited time at present. If you’re interested, jump to App Store for more details.