Adobe 13101332 - Photoshop - Mac User Manual page 426

Adobe Photoshop Help
Using Help | Contents
To reset optimization settings to the last saved version (Photoshop):
Press Alt (Windows) or Option (Mac OS), and click Reset.
Resizing the image during optimization (Photoshop)
When optimizing an image in the Photoshop Save For Web dialog box, you can resize the
image to specified pixel dimensions or to a percentage of the original size.
To change the pixel dimensions of an image during optimization:
1 Click the Image Size tab in the Save For Web dialog box.
2 To maintain the current proportions of pixel width to pixel height, select Constrain
Proportions.
3 Enter values for Width, Height, or Percent.
4 Choose an interpolation method from the Quality pop-up menu:
Jagged (Nearest Neighbor) for the faster, but less precise, method. This method is
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recommended for use with illustrations containing non-anti-aliased edges, to preserve
hard edges and produce a smaller file.
Smooth (Bicubic) for the slower, but more precise, method, resulting in smoother tonal
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gradations.
For more information on interpolation, see
5 Click Apply.
Controlling optimization (ImageReady)
By default, Photoshop and ImageReady automatically regenerate the optimized image
when you click the Optimized, 2-Up, or 4-Up tab at the top of the document (if you have
modified the image since the last optimization), when you change optimization settings
with the optimized image displayed, or when you edit the original image.
In ImageReady, you can turn off auto-regeneration so that the last version of the
optimized image remains in the image window until you manually reoptimize the image
or reactivate auto-regeneration. This feature is useful if you want to edit the image without
pausing for reoptimization with each modification. You can also cancel optimization while
it's in progress, and preserve the previous image.
When auto-regeneration is turned off, the Regenerate button
right corner of each optimized image view. A regeneration alert symbol also appears in
the Color Table palette if the optimized image is in GIF or PNG-8 format, indicating that the
color table is out of date.
To turn Auto Regenerate on or off:
In the Optimize palette, choose Auto Regenerate from the palette menu. A check mark
indicates that the option is turned on.
Using Help | Contents
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"About resampling" on page
| Index
Preparing Graphics for the Web
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