Bitmap

Bitmap images contain pixels that are either black or white, no shades of gray in between. Bitmap images consist of one channel and are very small in file size, so this mode is best used for scanned line art and signatures, shown in Figure 3-7, to place in letters and page layouts. Occasionally, you may use this mode for photos where you want a special effect.

Figure 3-6:

Indexed Color reduces your color palette to 256 colors and causes dithering and loss of details.

Figure 3-6:

Indexed Color reduces your color palette to 256 colors and causes dithering and loss of details.

RGB Color 16.7 million colors

Indexed Color 256 colors or less

RGB Color 16.7 million colors

Indexed Color 256 colors or less

Figure 3-7:

Use bitmap mode for line art and signatures.

Use it for photos only for special effects.

Figure 3-7:

Use bitmap mode for line art and signatures.

Use it for photos only for special effects.

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