GIMP :: Unable To Export Image As JPG

I encountered an interesting problem yesterday while trying to export an image as a jpg. I've outlined what I did.

I had a jpg file of dimensions 150wide X 100 high. Lets call this small.jpg . I had another jpg image that was much larger. Let's call this large.jpg . I wanted to change the size of large.jpg to have the same dimensions as small.jpg.

For convenience, I pasted the large.jpg onto small.jpg and then used the resize tool. When I clicked on export I got the following error-

Saving `large_to_small.jpg` failed

JPEG image plug-in could not save image. I could have sworn that I've done this before and it worked. So I wasted a lot of time trying to `fix` GIMP.

Solutions

1. Don't paste onto a pre-existing image. Create the canvas size you require then paste the image then resize and export.

2. If you do happen to paste an image onto another for resizing. Close all the files except the current one you are working with. Now choose select all and copy then go to file >>create>> from clipboard. The new image should be of the same dimensions. Export.

One thing I should mention, even though there was an error, the image large_to_small.jpg was created (file size 0 bytes). As you would expect, the jpg file couldn't be opened in GIMP.