Hi zoran
No, in the transprency tab, there is no transparency shown but the image mask is square.
The image depicts a black circle, and is set to overprint on a background of pantone.
If I set the image mask to knock-out, only the black circle knocks out (the motif) which means the non-motif area is transparent - is this correct ? As I can not open it in Photoshop, I can only guess.
Upon closer inspection, I can also see that the tonal value is not consistent, it ranges from 85-95% in seperation preview, remains a constant 100 % when I use the pipette from Pitstop. this is what is confusing
The Form is given by pitstop as an image mask , 1500 dpi based on CMYK colour .
Does this information help more ?
Fredtub