Rotating a photo

Who, me?

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Jun 19, 2021, 1:18:48 PM6/19/21

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I have a few digital photos that are irritating me in their frames as
they are a few degrees out of true vertical or horizontal. When I say 'a
few' I mean no more than 5 degrees.

I have GIMP on my (Linux) PC and can adjust them to be 'true' but
whenever I try to save the image it ignores the slight rotation I've made
and saves it (renamed) in its original slightly off true form.

What am I doing wrong please?

I suppose I could simply adjust them in their frames behind their masks
but I'd prefer to adjust the actual image so they can be printed at A3 or
even A2 (approx) sizes.

--
david

Pete C

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Jun 19, 2021, 3:38:30 PM6/19/21

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Straighten your pic, take a screen grab and save that.

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Pete C

Oliver

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Jun 19, 2021, 4:46:29 PM6/19/21

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On 19/06/2021 18:18, Who, me? wrote:
>

<https://www.reddit.com/r/GIMP/comments/ijnkph/how_do_you_save_a_rotated_image/>

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Oliver

Who, me?

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Jun 20, 2021, 4:32:13 AM6/20/21

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A screen grab doesn't give a high enough resolution for printing later.

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david

Who, me?

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Jun 20, 2021, 4:35:03 AM6/20/21

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Thanks Oliver. I had a look and that is OK for flipping or rotating 90
degrees.

I'm using Tools/Transform Tools/Rotate which allows incremental rotations
and its this that won't save. I *think* it must be something to do with
layering but just cant figure it out.

--
david

Bri.

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Jun 20, 2021, 4:49:52 AM6/20/21

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Who, me? wrote:

> I'm using Tools/Transform Tools/Rotate which allows incremental rotations
> and its this that won't save. I *think* it must be something to do with
> layering but just cant figure it out.

I have never used Gimp but just a suggestion.
Is there a "Flatten Image" or "Flatten and Crop" command that you
could use to get rid of any unwanted layers, leaving just the rotated
layer?
--
Bri.
(W7 Desktop)

Bri.

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Jun 20, 2021, 4:52:32 AM6/20/21

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https://learnmmd.com/LearnMMD_GIMP_Tutorials/Layers_in_GIMP/FinishImage.html
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Bri.
(W7 Desktop)

Who, me?

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Jun 20, 2021, 5:11:38 AM6/20/21

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There is but it still wont save the rotated image.

The nearest I can get to saving is by using a different app (Shotwell)
but this creates a file that can only be reopened in Shotwell which isn't
helpful if I want to print to anything larger than A4.

I'm continuing to try different apps.....

--
david

Bri.

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Jun 20, 2021, 5:17:35 AM6/20/21

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How odd!
You are using "Export" and NOT "Save", aren't you?
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Bri.
(W7 Desktop)

Who, me?

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Jun 20, 2021, 5:55:26 AM6/20/21

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Oh b***er! I'll try again...

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david

Who, me?

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Jun 20, 2021, 6:03:11 AM6/20/21

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Nope - none of the apps will save the 3degree rotation! I think I'll go
back to PlanZ and simply rotate the print slightly behind the mask and
then frame it.

--
david

Bri.

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Jun 20, 2021, 6:24:26 AM6/20/21

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Who, me? wrote:

> Nope - none of the apps will save the 3degree rotation! I think I'll go
> back to PlanZ and simply rotate the print slightly behind the mask and
> then frame it.

Very strange, such a basic operation.
I've just tried it in Affinity Photo and no problems, so if PlanZ
fails I will do the job for you if you forward the pic to me.
Reply-To: is valid.
--
Bri.
(W7 Desktop)

boggy

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Jun 20, 2021, 8:23:23 AM6/20/21

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I've just loaded a jpg into Gimp, rotated it slightly, exported it and
the rotation was duly saved.

Using Tools/Transform Tools/Rotate I rotated it using the 'arrows' and
then hit the 'Rotate' button to fix the rotation before exporting.

Not sure if that helps - if not I've no idea!

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boggy

Who, me?

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Jun 20, 2021, 8:45:29 AM6/20/21

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Thank you for the offer Bri. I'll see what happens.

--
david

Who, me?

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Jun 20, 2021, 8:47:41 AM6/20/21

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Thanks Boggy. I'll retrace my steps again tomorrow and follow how you
did it. I *thought* I was doing the same but am wondering if I missed
out something somewhere and by tomorrow I'll have forgotten just what I
did today!

--
david

Indy Jess John

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Jun 20, 2021, 3:49:41 PM6/20/21

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I wonder if you hit the rotate button before doing the rotation?
I think in the absence of knowledge of how Gimp works, that is what I
would have done.

Jim

Oliver

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Jun 20, 2021, 3:49:45 PM6/20/21

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I tried it just now using Gimp for Windows. Rotated a jpg about 20
degrees using "arbitrary" rotate. Then used Export to save as JPG so
that it overwrote the original file. The new version has kept the rotation.

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Oliver

Oliver

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Jun 20, 2021, 4:08:34 PM6/20/21

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On 20/06/2021 20:49, Indy Jess John wrote:
> I wonder if you hit the rotate button before doing the rotation?
> I think in the absence of knowledge of how Gimp works, that is what I
> would have done.

I hit the rotate button after doing the rotation.

By the way, going View > Flip & Rotate > Other Rotation, doesn't save
the rotation when Exported to another file.
But Image > Transform > Arbitrary Rotation does save the rotation when
Exported.

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Oliver

Who, me?

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Jun 21, 2021, 4:20:54 AM6/21/21

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It worked! I was obviously doing something wrong somewhere down the line
but have now copied your instructions into a file for future use.

Thank you to all who offered suggestions.

--
david

Bri.

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Jun 21, 2021, 4:30:22 AM6/21/21

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Pleased it's worked for you.
It might be an idea to print the location of that file on the back of
the photo.
--
Bri.
(W7 Desktop)

boggy

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Jun 21, 2021, 5:50:53 AM6/21/21

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Super - glad it helped!

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boggy