Using Transparency And Mattes - Adobe 29180155 - Photoshop Elements 4.0 User Manual

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See also
"About PNG-24" on page 261
"To preserve background transparency in a GIF or PNG image" on page 267
To create an animated GIF
In the Editor, place the images you want to appear in each frame of the animation on separate layers of the Layers
1
palette. For example, to create an animation of an eye blinking, you would place an image of the open eye on one
layer, and an image of the eye closed on another layer.
Choose File > Save for Web.
2
Note: If your image has multiple layers, you can also open the Save For Web dialog box from the Save As dialog box by
choosing CompuServe GIF format and selecting Layers As Frames.
Optimize the image in GIF format.
3
Select Animate.
4
Set additional options in the Animation section of the dialog box:
5
Continuously repeats the animation in a web browser.
Loop
Specifies the number of seconds that each frame is displayed in a web browser. Use a decimal value to
Frame Delay
specify fractions of a second. For example, use .25 to specify one-quarter of a second.
See also
"About GIF format" on page 260
"To preview an animation" on page 271
"Understanding layers" on page 81

Using transparency and mattes

About transparent and matted web images
Transparency makes it possible to create nonrectangular images for the web. Background transparency, supported
by the GIF and PNG formats, preserves transparent pixels in the image and allows the background of the web page
to show through the transparent areas of your image. (Although the JPEG format does not support transparency, you
can specify a matte color to simulate the appearance of transparency in the original image.)
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