Using Save for Web
When you use the Save for Web feature, you'll need to make a few decisions about the image you're saving:- File format: Save for Web allows you to choose from a few Web-safe
file formats. Most of the time, you'll use the JPEG format for
photographs. PNG-24 will keep the full quality of the image, whereas
PNG-8 is mainly used for graphics and illustrations that use just a few
colors. Generally, you won't need to use the GIF or WBMP formats.
- Image size: If desired, you can resize the image
directly from the Save for Web dialog box. Resizing the image to be
smaller will also reduce the file size. However, if you're using a
service like Facebook or Tumblr, you probably won't need to resize your
images because these services resize them automatically.
- Quality: If you're using the JPEG format, the image can be saved at different quality levels. You may want to experiment with different settings to find the best balance between quality and file size.
Drag the slider in the interactive below to adjust
the jpeg compression quality. Remember, higher quality levels will also
increase the file size. Try to find a setting that looks good while
keeping the file size relatively small.
To save for the Web:
- Select FileSave for Web.
- The Save for Web dialog box will appear. Select the desired file type and quality level.
- If needed, resize the image by typing the desired dimensions under Image Size. When you enter the new image width, the height should be adjusted automatically to maintain the original aspect ratio.
- If desired, you can use the 2-Up view to compare
the original image with a preview of the new version. This is an easy
way to make sure you haven't lost too much quality from the original
version. Note the file size in the bottom-left corner of each preview
window.
- Click Save. A new dialog box will appear. Type the desired file name and choose a location for the file, then click Save. You'll want to use a new file name to avoid accidentally overwriting the original file.
Open the example file in Photoshop and use Save for
Web to save a new version of the image. Try out different file formats
and quality settings to see how they affect the image's quality and file
size.
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