Make transparent GIF/PNG

Making transparent GIF / PNG pay attention that it should be made at the 3rd step when saving images you are working on. When pointing "Use transparency" at Watermark action at the 2nd step you will only make transparent watermark on your images but not a transparent GIF or PNG.

To make transparent GIF / PNG choose the appropriate extension at the 3rd step, then click "Format settings" button and click "Make a transparent GIF (or PNG)". Then click "Use this color" and push "Color" button to choose the color to be transparent from palette.

This way when you push "Start conversion" you will get your images saved as GIF (or PNG) with the chosen transparent color.