Printer Pro - Print attachments, receipts, documents, web pages from your iPad and iPhone.
Adobe Acrobat DC - Make your job easier with Adobe Acrobat DC, the trusted PDF creator. Use Acrobat to convert, edit and sign PDF files at your desk or on the go.
CalPrint - CalPrint uses your existing reminders and calendar entries on your iPad or iPhone (Exchange, iCal and Google Calendars etc.
Wondershare PDFelement - All-in-one PDF editor
Air Sharing - Air Sharing lets you bring your documents with you — without bringing your computer.
Foxit Reader - Foxit Reader is a free and light-weight multi-platform PDF document viewer.