How to make my image a curved square?

[Blighty]

(07-26-2018, 08:33 AM)JayTee Wrote: i just want the image itself to be a rounded edged square. no lines or anything.

I misunderstood your original request. Hope this is what you want.

1) Select your image layer in the Layers Dialogue.

2) Make sure your layer has an alpha channel. Layer > Transparency > Add Alpha Channel If it is greyed out it already has an alpha channel.

3) Use the Rectangle Select tool to create a square selection

4) Select > Rounded Rectangle 50%

5) Select > Invert

6) Edit > Clear or press the Delete key

7) SAVE as an xcf file. EXPORT in a format that supports transparency eg png (not jpg)