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Chapter 19. GIF Format > Transparency

19.7. Transparency

The GIF89a format introduced the ability to make portions of graphics transparent. Whatever is behind the transparent area (most likely the background color or pattern of the page) will show through. With transparency, graphics can be shapes other than rectangles (Figure 19-3)!

Figure 19-3. The same GIF image with transparency (left) and without (right)



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