Adobe has warned that some - but not all - Adobe Creative Suite 3 applications will need software updates before becoming fully compatible with Mac OS X 10.5.

"Adobe and Apple have been collaborating closely for months to ensure that Adobe Creative Suite 3 applications can run smoothly and reliably on Mac OS X Leopard," Adobe explains in a statement.

"We are proud to support this impressive new operating system, and to ensure that our creative customers can take full advantage of the performance and value of using Creative Suite 3 applications and Mac OS X Leopard on Intel-based and PowerPC Macs."

The company warns that Adobe Acrobat 8 Professional and the company’s professional video applications, including Premiere Pro CS3, After Effects CS3 Professional, Encore CS3 and Soundbooth CS3 ar not yet Leopard compatible.

"We expect to publish free Leopard compatibility updates for the video applications in December 2007 and for Acrobat 8 Professional and Adobe Reader 8 in January 2008," Adobe said in a statement on its website.

Adobe Photoshop CS3, Flash CS3 Professional, Contribute CS3, Dreamweaver CS3, Fireworks CS3, Flash Player 9, GoLive 9, Illustrator CS3, InCopy CS3, InDesign CS3, Bridge CS3, Version Cue CS3, Device Central CS3 and Acrobat Connect (Start Meeting) are all compatible with Leopard.

The company warns that older versions of its software may not work fully on the new OS, and confirmed it will not introduce any Leopard updates for older versions of its applications.