I have to edit a scanned photo where the scanner has offset the image a few pixels in 12 horizontal slices. The photo is no longer available to be re-scanned.

I want to divide the image into 12 slices, place each slice on its own layer, shift each slice until they are aligned, then flatten the layers to create a corrected image. 

I thought Layers would help me but can't figure out any way to do it. 
Please can someone suggest a method, with very simple instructions for a complete newby to GIMP  .

Thx, fizzazz

I rotate - manually using my eye to judge. Then I try to rotate again - the option for arbitary rotation is now missing. Why?

All I see now is 'Guillotine'

I'm using:

Image -> Transform -> Arbitary Angle (or something - I can't see it now).

What am I doing wrong?

What I would also like to do is... make a selection... and then rotate the image underneath... how can I do this?

ALSO... something else that has been bugging me... the ants... CTRL D should get rid of.
It doesn't
I don't want to get rid of the ants as such - just NOT have them there when I want with a quick keyboard shortcut.

ALSO... my Save for Web option has gone from the menu. I haven't updated my current version or anything. Where has it gone? It used to be there - even if the image was way too big - it was still there!

Is it the newer version of Gimp having different controls or something?

Thanks.

Hi Guys,

Glad to be a part of this community! I've had GIMP 8 on my Windows 7 PC for sometime, but never used it much, because it seemed so complicated compared to other graphics applications. I'm more au fait with Pixlr, but recently discovered an image dimension limit of 4000 x 4000 pixels there. So, I figured it would probably be best to learn whatever I could about GIMP, as I'd always heard it was very feature rich.

Anyway, seeing that a stable version of GIMP 2.10 was recently  released, I decided to upgrade. Everything seemed to be working fine: it loaded my 7004 x 7680 transparent PNG as an XCF file, and afterwards I cropped it a bit, added a couple layers and some text, all without any issues. However, when I tried exporting my finished work as a PNG, nothing happened. Have any of you experienced the same issue? If so, how did you resolve it?

Thanks.

UPDATE: The issue appears to be related to the particular XCF file, because I just tried exporting another one, and it worked just fine. This time the Export Image as PNG dialog popped up (as shown below), and when I clicked Export, it worked perfectly. Maybe there's a problem with the file that won't export. Could be corrupt or something. I don't know. I'm going to delete it and start afresh.

Using version 2.8 still but can upgrade if it will make things easier:

I am trying to add though bubbles to pictures and have found a nice bubble png I can put on top of my pictures and that works fine.



The next step is to insert another picture into the bubble, so I drop the thought image on top of the bubble to create a new layer:



Now I need to crop the thought image to the central area of the bubble image. I can use the color select tool on the bubble layer to get the cropping area but I cannot work out how to crop the thought layer using that selection to trim the legs in this image to the size of the bubble. As soon as I switch to the thought layer the selection area changes.

Any help appreciated.

Greetings, all. I'm familiarizing myself with this software but experiencing a problem creating a gif, or rather, exporting it. I've captured a part of game and created a gif with another program. I opened the gif with GIMP and I went through each frame to erase the background and leave transparency in its absence. Now, when I export, all the layers are shown when the gif is viewed, one after the next. I want the previous frames to become hidden when the next one is displayed. I've toyed with all the options in the export settings and cant seem to find a solution. any advice? xcf project file is available here:
https://nofile.io/f/wVgVCsOMR2e/Next+Level+HD+Taunt.xcf
thanks in advance!

Hello,
          I've recently downloaded gimp 2.10 and I find that when I utilise the eraser
function it behaves like the paintbrush and paints the photograph with the 
background colour.I should be obliged if anyone could tell me how to remedy this,
                                                                                       Yours,
                                                                                             halligant

I have a letter I've drawn as an image.  It is like hollow - you know?  It is a 'G' drawn like with parallel lines you know?

  And I want to clean out the area inside the lines - i.e. inside the letter itself - and clean out the area outside the lines which is supposed to be already 'cleaned out'  i.e. erased,  but isn't.

The border, the outline, of the letter is nice thick black.

 I have the idea that gimp will somehow recognise the difference between that black and select all the area within, like between the lines, within the actual letter, so's I can flood fill it or erase it - and do the same on the other side of the border and erase everything to the edges of the canvas so's I've just got the letter left.

 Is that right or am I remembering some other prog somewhere?

 Can it be done easily or do I have to go all around my letter again with the lasso or the path tool or something and make a selection that way?

How can I remove the F1 shortcut in GIMP 2.10?
I used to have a snippet in gtkrc inside GIMP's config which disabled the F1 shortcut, which I could then use for something else. This is the snippet:

This script is under Selection -> Distort. 
Im interested in the steps.

As far as i can tell, it does the following:

- Spread
- Blur
- Levels (alpha)

But the code says Threshold instead of Levels, which is odd, because Threshold doesnt have an alpha option.

Following EsperMachine's remarks, I'm going to upgrade the script formerly known as stroke-fill-visible-paths. The changes I envision are:

• add a "reverse gradient" option
  
• add stroke in "line" mode for cleaner results
  
• possibly split the stroke/fill choices in two different menu entries