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how 2 compress jpg file..

Posted on 1998-07-04
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Last Modified: 2010-04-06
hi,
just wan 2 know how 2 compress jpg file to smaller size
like 6-12k size.N graphic still look very nice.
Using what kind of software ?
thanx a lot
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Question by:michaelair
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grnemstr earned 100 total points
ID: 1112833
Michaelair,
JPG's files are unique in that if the picture is 10K bytes when displayed, it may be only 4K bytes when stored. Nice trick, huh? Meaning...they are already compressed.  Now if you are asking how to change the actual size permanetely...
Every image is made up of pixels. This means that you can also denote an image by number of pixels. For example, the "sally.gif" image is 97 pixels high by 64 pixels wide. How do I know that? I have an expensive graphics program that tells me so. How would you know? Without a specific program, you'll have to play around with the numbers in these commands a little bit but it's easy to do. You might also want to open the image by itself in your browser window. Do that by choosing "OPEN FILE" under the FILE menu above. When the picture pops up, look at the title bar along the very top. Some browsers display the pixels there for you.

Here's what you do. Denote to the image command how many pixels high by how many pixels you want wide. The "sally.gif" image is 64X97 pixels. If I want the image to appear smaller, I will ask for the pixels to be smaller, say 30X55. If I want it bigger, I would set the pixels larger, say 100X250. If I want to totally distort the picture, I can.

Here's the formula:

<IMG HEIGHT="##" WIDTH="##" SRC="image.gif">
Notice the HEIGHT and

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