On Sun, Aug 7, 2011 at 8:27 PM, FortKnox wrote:

Is there any way to just rotate a rectangular image? I have often scanned in something that's not square, it's often a brochure that's taller than it is wide. But when I scanned it, I had turn it sideways to get the whole thing visible to the scanner. So it scans completely, but now I have an image of it that's not "up is up"-- I have "up is right" or "up is left." But now I have to do all this junkbutter: 1) Look at the canvas size, 2) make the width & height equal to the larger of the two, 3) use the Rotate tool to turn the image 90 degrees, then 4) do some magic to move the image to start at the upper-left, and 5) crop it back down to get rid of the blank space on the bottom. YUCKY! Is there some magic tool I haven't found yet that will rotate, move and crop all in one step? I just want to turn the entire image on it's side without any other fuss. Is that possible somehow? I have to assume it is, but I sure couldn't find it... thanks!

Image -> Transform -> Rotate (direction)

Rotates the entire image and canvas in one step.

-- Frank Gore
www.ProjectPontiac.com

On Sun, Aug 7, 2011 at 8:27 PM, FortKnox wrote:

Is there any way to just rotate a rectangular image? I have often scanned in something that's not square, it's often a brochure that's taller than it is wide. But when I scanned it, I had turn it sideways to get the whole thing visible to the scanner.

There is a straighten-and-crop script at

http://registry.gimp.org/node/18821

This takes a path and rotates the image accordingly. It can use an optional script 'postrotate', no longer in registry.gimp.org, (very slow and often gives odd results, so use the alternative setting) but if you want to try that, with straighten-and-crop, you can find it here http://linux.m2osw.com/aggregator/sources/29%3Fpage%3D6?page=1

On 08/08/2011 02:27 AM, FortKnox wrote:

Is there any way to just rotate a rectangular image? I have often scanned in something that's not square, it's often a brochure that's taller than it is wide. But when I scanned it, I had turn it sideways to get the whole thing visible to the scanner. So it scans completely, but now I have an image of it that's not "up is up"-- I have "up is right" or "up is left." But now I have to do all this junkbutter: 1) Look at the canvas size, 2) make the width& height equal to the larger of the two, 3) use the Rotate tool to turn the image 90 degrees, then 4) do some magic to move the image to start at the upper-left, and 5) crop it back down to get rid of the blank space on the bottom. YUCKY! Is there some magic tool I haven't found yet that will rotate, move and crop all in one step? I just want to turn the entire image on it's side without any other fuss. Is that possible somehow? I have to assume it is, but I sure couldn't find it... thanks!

See Frank's answer for the fixed 90 degrees rotation.

For an arbitrary rotation, you don't need to enlarge the canvas beforehand. You can use a rotation in "corrective" mode, and then "Image/Fit Canvas to layers" which will enlarge and move the canvas as needed.