How to save transparent background in Photoshop, for use in another program
How do I save a transparent background in Photoshop 7.0, for use in another program on a MAC, without losing the transparency?
Save it as a format which supports transparent background like PNG, GIF, TIFF, etc. (PNG is the best) DO NOT save it with JPG/JPEG, it doesn't support transparency.
To save it as PNG, select Save As from File Menu, a dialog box would appear, now select PNG (Portable Network Graphics) from the drop-menu and choose Save after giving it appropriate name.