User Manual

Image Broadway 6 Help

Layers > Layer Mask > About Layer Mask

About Layer Mask

Only certain file formats support transparency. You have the option of using PNG or GIF format if you want part of your

image to be transparent. The PNG format is supported by all popular browsers and has the advantage of 32-bit color depth.

The Image Broadway IBW format saves transparency and alpha channel information as well.

Transparency is implemented by using alpha channel. Alpha channel actually is a grayscale image. The alpha channel takes

values in the range [0,255] where a value of 255 represents 100% opacity, and 0 represents 100% transparency. You can

use the Layers > Transparency > Add Alpha Channel menu item to add alpha channel to a layer.