Step 7 - Maintain (Cont.)

Optimize Your Images - JPEG (JPG)

The JPEG format, with its support for 16.7 million colors, is primarily intended for photographic images. The internal compression algorithm of the JPEG format, unlike the GIF format, actually throws out information.

How do I optimize a JPEG file? Even experts find it difficult to compress JPEG files without sacrificing quality. But, you'll be able to see the trade-offs between image quality and downloading time quite easily.

The photos below illustrate how the photo (bird2.jpg) was optimized using a free online optimizer from SiteReportCard Image Optimization tool which you can use for free. With this tool you can optimize GIF, JPEG, and/or PNG images.

Original: JPG
Size : 29568
Height: 368
Width: 548

Size: 27990
Quality: 70
Savings: 5.34%

Size: 23422
Quality: 60
Savings: 20.79%

Size: 19781
Quality: 50
Savings: 33.10%

Size: 16773
Quality: 40
Savings: 43.27%

Size: 13701
Quality: 30
Savings: 53.66%

Size: 9894
Quality: 20
Savings: 66.54%

Size: 5610
Quality: 10
Savings: 81.03%

Next: How do I optimize a PNG image?

Return - Reduce download.

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