Step by step,
Run program.
Press "LOAD" button.
Select image.
View default result.
In left side screen(normalmap settings)
Change any settings( emboss(on/off),sharpen(on/off),negative(on/off),contrast,brightness,saturate,blur radius, blur mode(1,2,3) , normal height )
View result.
In right side screen(specularmap settings)
Change any settings( sharpen(on/off),negative(on/off),contrast,brightness,saturate )
For advanced normals.
Press button "DOUBLE RENDER"
Change any settings( emboss(on/off),sharpen(on/off),negative(on/off),contrast,brightness,saturate,blur radius, blur mode(1,2,3) , normal height )
View result.
Change mix mode for first pass render and second pass render .
Play with any settings untill you like what you see and save.
Save overwrite not work yet. Will be fixed.
DDS formats(compression levels):
0 - A8R8G8B8 without compression big file size, better quality.
5 - DXT5 ARGB (Interpolated Alpha) smaller file size, lower quality (Although it is not very noticeable that the quality is worse)
I hope this help.
Regards.
The secret to creativity is knowing how to hide your sources.