PDF Expert allows you to read and markup PDF documents right on your iPad. Use it to achieve a paperless classroom by having your students submit their papers in PDF format right from Microsoft Word, Open Office or Google Docs, and correct them using the built-in highlighter, strikeout, and underline tools. Add lines, arrows, freehand annotation drawings, and premade or custom stamps. Then, email the corrected paper back to your students right from the app.

The editing features include text highlighting, underlining, and strikethrough with 18 different color choices. You can add an image, draw boxes, circles, lines and arrows, or annotate the document freehand with the pen tool. In addition, you can type in a text box, add a note, or use one of the dozens built-in stamps. You can even create your own stamp for a more personalized markup. 

Within the PDF document itself, you can delete pages, move pages around to order them, and insert pages from another document. You can even rotate individual pages, extract pages to a new document, and email individual or groups of pages to one or more recipients.

Use GoogleDocs, Dropbox or email to get your documents into PDF Expert or connect directly through a browser on your Mac or PC using the iPads IP address to upload documents from your computer. When using DropBox you can have PDF Expert sync your edits so they are available on all your computers.

iTunes: https://itunes.apple.com/app/pdf-expert-fill-forms-annotate/id393316844
Developer Website: http://readdle.com/products/pdfexpert_ipad/
YouTube: http://www.youtube.com/watch?v=XGAl__CiEpk