Decreasing Image Size in Postings

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Decreasing Image Size in Postings

Postby Admin » Sun Jun 01, 2003 12:57 pm

Some folks have been asking about reducing image sizes to post within the 40kb limit here. <BR> <BR>You need to use an image utility software -- it doesn't matter whether it's Paint Shop Pro, Photoshop, CompuPic, ACDSee, or anything else. The principles are the same. <BR> <BR>JPEG format is a compressed image format -- that is, the file size is decreased, and the computer of the person viewing the image decompresses the image when it's displayed. Therefore, file size is reduced. <BR> <BR>There are therefore two ways to control image size: dimensions of the image, and the amount of compression. The more compressed the image file is, the smaller the file size, but the lesser the quality. <BR> <BR>My recommendation? Use 320x240 or thereabouts for image dimensions, unless the image requires a bigger size to be legible, and compress the file roughly 40%. This should get JPEGs down to the 10-20 Kb size. It matters not what size you scanned the image if you used a scanner, these settings to resize the image should work just fine. Also, the maximum screen resolution is 72 dpi, so if you're scanning the image for viewing on a monitor, it makes no sense to scan at 100 dpi or 300 dpi. The higher the dpi, the bigger the file size. <BR> <BR>Hope this helps!
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