Adobe Photoshop CC 2015 SDK
Adobe® Photoshop® CC 2015 is a 64-bit only application on the Macintosh operating system. On the Windows operating system, Adobe® Photoshop® CC 2015 is a 32-bit and 64-bit application.
Photoshop plug-in developers will need to use the SDK to update plug-ins to run with the 64-bit version of Photoshop.
Developers will need to meet the requirements before proceeding with converting a plug-in conversion:
The SDK provides details in converting the dissolve example plug-in. See the "Making 64-bit plug-ins" page in the documentation section of the SDK after downloading.
Archived Photoshop SDKs
Photoshop CS3 SDK
Download the Photoshop CS3 SDK universal binary (ZIP, 11.8 MB)