Republish iWeb 1.0 sites to reduce image load times

Feb 27, '06 06:12:00AM

Contributed by: Anonymous

I found this Apple Knowledge Base article while looking for another iWeb-related problem. In it, Apple states:

When you added images to your page they would be converted to PNG format images when published. PNG is a format which allows for image transparency to be displayed in your web browser. However, the downside is that this image format takes up more disk space than a compressed JPEG.

Enhancements in iWeb 1.0.1 allow for most types of images and photo page thumbnails to be published as JPEGs where possible. This translates into faster page loads when people visit your website.
To take advantage of this new feature in existing sites, you need to republish all of its pages. To to that quickly, hold down the Option key and Publish All to .Mac from the File menu.

[robg adds: In many cases, PNGs can be substantially smaller than JPEGs, so ideally, you'd be able to choose which format you'd like to use on a per-image basis. For instance, a 640x480 photo of my cat becomes a 57KB JPEG (at 65% quality), or a 164KB PNG-8, but a 728x417 screenshot becomes a 77KB JPEG or a 40KB PNG-8. Assuming you mostly publish photos via iWeb, you should see a fairly notable reduction in file sizes.]

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Mac OS X Hints
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