On the other hand a non-zero value say N will make transparent all pixels with RGB values where the R G and B components have values from (255-N) to 255 i.e. A threshold value of 0 will make transparent all pixels with RGB values where the R G and B components are all exactly 255 i.e. If your logo does not have this property you can optionally have its background be made transparent provided it is white (or 'near' white) by entering a transparency threshold value. Ideally uploaded logos must have a transparent background.You can adjust the logo size placement and rotation once the upload is complete by clicking on the logo within the main image.
(See note on Transparency Threshold below for more information.) (These image formats are acceptable: jpeg gif png.)