SRDx is a Plug-in for Photoshop (64 bit) on macOS X from version 10.10 and on Windows (64 bit) from version 7.
For Windows the driver of your graphics card must support OpenCL version 1.2 (or higher).
It requires an installed copy of Adobe Photoshop:
• Photoshop CC, Photoshop CC 2014, Photoshop CC 2015.X, Photoshop CC 2017, and 2018 to 2021
• Photoshop CS4, Photoshop CS5, Photoshop CS5.5, Photoshop CS6
• Photoshop Elements 14 and 15, also Photoshop Elements 2018 to 2021