CS5 includes an upgrade of the Photoshop software that makes it easier to detect the borders of images within a photograph, among other new features. This could come in handy when trying to delete or move an image of a person from a photograph. Typically, detecting just where a person’s hair strands end and the background begins is a painstaking process.

In a challenge for Adobe, the launch of CS5 comes just a few days after Apple Inc. updated the contract it has software developers sign, effectively preventing them from importing Flash applications to the iPhone and other devices.

Adobe’s Flash, the format that many web videos, games, and interactive graphics are created in, does not work on the iPhone or the iPad. Adobe has tried to work around this by giving developers a tool to translate Flash applications for the iPhone. Now, Apple says in its updated contract that developers must use Apple’s own tools if they want to create apps for its gadgets.

In an April 9 statement, Adobe said it was “looking into” Apple’s new language and that it will continue to develop its app-generating technology and include it in CS5.

CS5 will cost between $1,299 and $2,599, but Adobe offers flexible volume licensing programs and low pricing for the education market. The new CS5 Student and Teacher Editions for individual home-use are expected to start at $299. It will ship in the next 30 days and will be available in “major languages,” which in the past has meant English, French, German, and Japanese, by June 4—the end of Adobe’s fiscal second quarter.