ARM

Thank you Chris B. I don't fully understand what you mean by 'rendering tiles' but yes that sounds relevant because there are rectangles with (what I call pixel-shear) on both sides so the lines I'm talking about appear at regular intervals across the image. I tend to use a Dell XPS13 laptop, so reasonably modern, but agree a desktop machine with dedicated high performance graphics card is better for work like this. Thank you for taking the time to give me feedback. We all live and learn. Cheers!

Thanks Chris B, I'll try rasterising. Yes I use the FX button to the right of the Layers button in the panel on the right, select Internal, then usually black or white line and choose typically 2px width for the outline. Thank you, I overlooked rasterising!

I normally add a thin 'keyline' or 'outline' to my digital images before presenting them. This works fine for JPG images but fails on TIFF images: If I have done any adjustments, such 'inpainting', to a TIFF image, when I come to add an outline to the TIFF image the outline goes around the area I have inpainted, as well as the outside of the entire image. Therefore I have to save the image as JPG, then open the JPG version and add the outline as separate steps in my workflow. Is this a bug?

When rotating an image in Affinity Photo I get small feint lines through the image. I think it is pixelation or pixel-shear caused by the rotation. If I do the 'rotate' action in another app, such as Windows Photos, I get a clean rotation without getting any lines through the image.

When working on a JPG file in Affinity Photo, with page units set to inches, I select the crop tool and go to Custom Ratio, when I try to set the dimensions to 16" x 12" I have to enter the X and Y sizes twice before it sets the ratio as required. This bug was introduced in V 1.7.2 which I downloaded on 18Aug2019.