Here are some general guidelines for using AstroFlat Pro with an image editor not listed in this manual.
Your image editor MUST support Adobe® Photoshop® compatible 8BF style filter plug-ins. The documentation for your image editor will, most likely, say whether or not it supports 8BF plug-ins.
AstroFlat Pro is a "Filter" type of plug-in. Many editors emulate Photoshop's menu structure, so open your image and make it the current window, then look for a Filters or Effects menu followed by our ProDigital Software submenu containing AstroFlat Pro.
The documentation for your image editor should provide you more information on how to access "Filter" plug-ins.
For more information see also the Install into Another Editor section.