AFFINITY PHOTO - Resize Canvas unexpected results

[Jim Smith]

1.10.5.1342 on Windows 10

I opened a RAW (.nef) file, developed it and cropped it to the image seen below...

I then tried to increase the canvas size from 932px X 932px to 1000px X 1000px to create an even border by selecting the centre as the anchor point, like this...

...and I got this...

Am I doing something wrong?

Thanks, Jim

Edited June 11, 2022 by Jim Smith
added version details

[walt.farrell]

Your Resize options look good to me.

Question: Did you Crop in the Develop Persona before clicking Develop, or in the Photo Persona after development? And if you cropped in the Photo Persona, did you Rasterize & Trim after cropping?

[smadell]

When you cropped your developed raw file, you obviously brought the left border of your photo in (effectively chopping off some pixels on the left side). The thing of it is that cropping on Affinity Photo is non-destructive; the cropped pixels are still there, but are hidden by the current size of the canvas. When you expanded your canvas, you effectively revealed some of your previously cropped pixels.

The way to do what you want is to (i) crop the developed image; (ii) choose “Rasterize and Trim” by right clicking on the layer; and (iii) then increasing the size of the canvas.

The Rasterize and Trim command is destructive (there’s no getting the trimmed pixels back). You could, if you want, duplicate the cropped layer, turn off visibility on the original, and Rasterize/Trim the copy. The cropped pixels should still exist on the hidden layer, if you ever need them.

[Old Bruce]

40 minutes ago, Jim Smith said:

Am I doing something wrong?

If you choose the Move tool, the arrow below the hand in the tools,  you will most likely see the actual layer extending out to the left. This is because the Crop is never destructive. To achieve what you want is to do the development and then the crop and now flatten the document or rasterize and trim using the layers panel and finally enlarge the canvas.

[Jim Smith]

5 hours ago, Old Bruce said:

If you choose the Move tool, the arrow below the hand in the tools,  you will most likely see the actual layer extending out to the left. This is because the Crop is never destructive. To achieve what you want is to do the development and then the crop and now flatten the document or rasterize and trim using the layers panel and finally enlarge the canvas.

Yes. That works perfectly, thanks to all.

Edited June 11, 2022 by Jim Smith
addendum