Choosing Image Format for Web
Written by Samuro on October 31st, 2007 in Web Design.
Choosing right images format (image optimization) is one of ways to make your sites/blogs loading more faster. There’s three image format that usually used, jpg/jpeg, gif and png.
Each type of image format have the insuffiency and excess. So, as webmaster had to know the insuffiency and excess of each image format, then can choose the right format for different situation.
For example; image size 125×125 pixel, one color (black). Then save it as jpg, file size can be 11332 bytes though it save with the low quality. But if it saved as gif format, file size is just 192 bytes (gif 64 dithered).
Comparison of image quality:
- GIF. Small size if the image have little color. For image which have a lot of color like photo, use the JPG format. You can do experiment which the effective and optimized format.
- GIF format own the clear and bold color, jpg format sometimes become blur if saved at low quality.
- For transparent image, better use gif or png format.
You can try by saving same image with different image format. I usually saving gif format with quality 64 dithered, saving jpg format with medium quality.
How about you?!. Any suggestion please leave your comments bellow. 
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December 17th, 2007 at 2:19 am
Both gif and jpg are my favorites. I use gif if I want smaller file and jpg if I want better quality. Png is also good, but I just don’t have a habit to use it.
January 2nd, 2008 at 9:44 am
This is something new to me. Are you sure it works?
January 6th, 2008 at 10:37 pm
It’s usually best to use .gif images when ever the situation permits. Even images with many colors can be output into the gif format - given that the correct settings are adjusted.
January 7th, 2008 at 8:51 am
That is one of the most important matter for the website. Thanks for reminding us.
January 7th, 2008 at 11:14 pm
Greetings! You format seems to me on a course of work choose. Depending on the project formats can be different, and to tell it is particularly impossible.
January 10th, 2008 at 3:25 pm
“Choosing Image Format for Web” - Very nice article,thanks.
January 12th, 2008 at 8:23 pm
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January 14th, 2008 at 7:14 pm
I think going forward .png will come to the fore as IE7 now makes use of the transpacency of .png’s. Firefox always has and continues to grow in the fight for browser ’share’.
Adrian.
January 16th, 2008 at 2:09 am
Images used in web design is equally important when it comes to SEO. The total size of all the images on a single webpage can add up to a significant amount and will affect the load time of a webpage. It will also deters the visitors if it takes more than 10 secs to load a single page. As mentioned on the post, using gif for smal number of colors is strongly recommended because the file size is lower than jpg. Nice content
January 21st, 2008 at 2:17 am
Very informative post, I use JPEG and PNG most of the time by the way.
January 21st, 2008 at 6:03 am
I think gif is the most common.I always use it.
January 21st, 2008 at 6:05 am
If you want to tell something with your picture then gif is the best. Thanks for the post.
January 26th, 2008 at 4:45 pm
That is one of the most important matter for the website.
February 29th, 2008 at 1:40 pm
I always chose .gif for my web site.I like this format.Thanks.
March 7th, 2008 at 2:42 am
I also use gif most often. Thanks for posting, I have enjoyed reading your blog. Keep up the good work.
April 4th, 2008 at 7:10 pm
I always just used jpg, but never thought about this, thank you!
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