[Dan Man]

Hi, I'm a relatively new programmer working on a project. The project calls for uploading images to the server and the guy wants the users to be able to upload any image and have the script make the file size lower. Now i've done some research and found that this can be done, but by reducing image quality. Is there any way to reduce the file size and still perserve as much quality as possible. And can this method work for an image of ANY size?

[mousegu]

Well the only other way is ziping (which wont do you any good I assume), or changing the file type (which in some cases will also reduce image quality).

If you are working with jpgs, you can usually reduce the image quality from 100% to 85% without much difference to the untrained eye.

Hope that helps.

[mab]

The common image file formats - jpg/jpeg/gif... are already encoded/compressed (which is why you only get a small percentage reduction in size when you zip them.) The only way to reduce file size is to reduce the size of the image or reduce the image quality.

[Dan Man]

Thanks for the feedback guys.

[daleylay]

few months ago i also looking for this.I do a search in this site and found some demo so i download so of them. i remember one of them can do this function, but i didn't keep them. maybe you would like to try searching. good luck.