Adobe Systems Inc's Photoshop, Illustrator and other Creative Suite 3 programs have not been fully tested with the latest version of Apple Inc's operating system due out next month, which could lead to incompatibility issues.
A substantial proportion of Adobe users are also Apple Mac users, with many waiting for the new Mac OS X operating system, code-named "Leopard."
"CS3 hasn't fully been tested under Leopard," Adobe Chief Executive Bruce Chizen told Reuters in an interview. "If it doesn't work, we will make the necessary adjustments."
He said Adobe has not received a final copy of Leopard with which to test its software.
"What I think Chizen is saying is that they want more time than what Apple is giving them to make sure everything works," said Chris Swenson, an analyst with market research firm NPD. "They just don't want any hiccups that could hurt sales."
Officials from Apple could not be reached for comment.
Apple has said it will introduce the highly anticipated new operating system in October. The release was delayed so Apple could deploy engineers to work on software for the iPhone.
Microsoft Corp's Vista operating system, which went on sale in November of last year, also has had some incompatibility issues with other types of software.