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Old Sep 27, 2002, 2:40 PM   #1
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Default rotating JPG-file into a new jpg-file without loss off quali

Does anybody know a method or a program to rotate over 90 or 180 a JPG-file into a new JPG-file without loss of image quality?
In Corel-paint a JPG-image is converted to a bitmap image. After rotation this bitmap is compressed (with loss of information = quality) into a new JPG-file.
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Old Oct 8, 2002, 4:57 PM   #2
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not sure what you mean by rotating?..you mean by rotating from portrait to landscape...visa versa?...if you are using ps7...then uncheck the resample in size reduction
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Old Oct 28, 2002, 12:14 PM   #3
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I use ACDSee, which does lossless rotation
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Old Nov 10, 2002, 8:30 PM   #4
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My version of ACDSee isn't the latest one, but its rotation capability is limited. It rotates 90 degrees and 180 degrees with no apparent loss of quality, but rotation of smaller amounts such as, say, 15 degrees, causes severe quality loss.

The only program I have that seems to rotate at any number of degrees I want without apparently losing any quality is Photoshop L.E. I haven't even noticed quality loss if I happen to use Photoshop L.E. to rotate pictures in JPEG format (though I guess there probably is some): and I certainly haven't noticed any degredation when the picture I'm rotating with Photoshop L.E. is in TIFF format. Before manipulating pictures in any way, I usually convert them to TIFF and manipulate them as TIFFs. Only when I have the final result do I convert them back to JPEG.
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