Adobe's Document Cloud service has gone live, with a number of new and updated iPhone and iPad apps to make managing digital texts easier.

From the makers of Adobe Acrobat comes a new way to create a high quality PDF right on your iPad, iPhone or other iOS device. Adobe CreatePDF by Adobe Systems is an app that allows you to create a PDF or convert another document into PDF format.

A new Apple patent reveals a resolution and platform independent online document engine. Could it be enough to shake up Google Docs?

PDF annotating is fantastic on the iPad. You can highlight text, add new text, and much more with these apps. We compare the best free and paid options in this AppGuide.