digorydoo Posted July 2, 2021 Share Posted July 2, 2021 Steps to reproduce Create a new document, 64px * 64px Use the pixel pen and draw a few straight lines Choose "resize canvas" from the menu Resize to 77px * 77px Set the alignment position to the centre Expected behaviour Since I'm resizing only the canvas and not the content, the content should be left untouched The top-left corner of the content should align to a pixel, not a sub-pixel What I see instead The whole document becomes blurry The reason is probably that centring a 64px in 77px canvas results in a sub-pixel alignment Quote Link to comment Share on other sites More sharing options...
Old Bruce Posted July 2, 2021 Share Posted July 2, 2021 Yes, it is geometry and arithmetic making things blurry. I would do two resizes the first anchoring the top left and the second anchoring the bottom right. This will keep the pixel alignment. 64 -> 70 then 70 -> 77 pixels. This means one pixel off centre though. Quote Mac Pro (Late 2013) Mac OS 12.7.4 Affinity Designer 2.4.1 | Affinity Photo 2.4.1 | Affinity Publisher 2.4.1 | Beta versions as they appear. I have never mastered color management, period, so I cannot help with that. Link to comment Share on other sites More sharing options...
Joachim_L Posted July 2, 2021 Share Posted July 2, 2021 2 minutes ago, Old Bruce said: Yes, it is geometry and arithmetic making things blurry. A source of frustration / confusion IMO. Photoshop adds silently a "missing" full pixel without blurrying the image. Quote ------ Windows 10 | i5-8500 CPU | Intel UHD 630 Graphics | 32 GB RAM | Latest Retail and Beta versions of complete Affinity range installed Link to comment Share on other sites More sharing options...
walt.farrell Posted July 2, 2021 Share Posted July 2, 2021 4 hours ago, digorydoo said: The top-left corner of the content should align to a pixel, not a sub-pixel If you wanted the top-left corner to remain on a pixel boundary, why did you tell the application to add 6.5 pixels to each edge of your canvas? In order to follow your instructions, your existing artwork must move to a sub-pixel alignment. Quote -- Walt Designer, Photo, and Publisher V1 and V2 at latest retail and beta releases PC: Desktop: Windows 11 Pro, version 23H2, 64GB memory, AMD Ryzen 9 5900 12-Core @ 3.00 GHz, NVIDIA GeForce RTX 3090 Laptop: Windows 11 Pro, version 23H2, 32GB memory, Intel Core i7-10750H @ 2.60GHz, Intel UHD Graphics Comet Lake GT2 and NVIDIA GeForce RTX 3070 Laptop GPU. iPad: iPad Pro M1, 12.9": iPadOS 17.4.1, Apple Pencil 2, Magic Keyboard Mac: 2023 M2 MacBook Air 15", 16GB memory, macOS Sonoma 14.4.1 Link to comment Share on other sites More sharing options...
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