Operation Manual

Creating objects for the web | 629
Component Description
3. Zooming and panning tools Lets you zoom in and out of a document displayed in the preview
window, pan an image displayed at zoom level higher than 100%,
and fit an image in the preview window.
4. Eyedropper tool and sampled color swatch Lets you sample a color and display the sampled color.
5. Preset list box Lets you choose preset settings for a file format.
6. Export settings Lets you customize export setting, such as color, display options,
and size.
7. Format information Lets you view file-format information, which is available for each
preview frame.
8. Color information Displays the color values for a selected color.
9. Speed list box Lets you choose an Internet speed for saving the file.
You can export web-compatible files using preset settings. This allows you to optimize the file, without the need to modify individual
settings. You can also customize the settings to produce a specific result. For example, you can adjust its color, display quality, and file size.
Choosing a web-compatible file format
This table is a quick reference for choosing a web-compatible file format.
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File format Ideal for
GIF Line drawings, text, images with few colors, or images with sharp
edges, such as scanned black-and-white images or logos.
GIF offers several advanced graphic options, including transparent
backgrounds, interlaced images, and animation. It also lets you
create custom palettes for the image.
PNG Various image types, including photos and line drawings.
The PNG file format (unlike the GIF and JPEG formats) supports the
alpha channel. This allows you to save transparent images with
superior results.
JPEG Photos and scanned images.
JPEG files use file compression to store an approximation of an
image, which results in some loss of image data, but does not
compromise the quality of most photographs. You can choose the
image quality when you save an image — the higher the image
quality, the larger the file size.