Starbase1 Posted November 30, 2020 Share Posted November 30, 2020 Hello All, I have a very large image with lots of large layers, (over 100), they were all rendered in my CGI application to a standard scale, as 32 bit PNG, regardless of the size actually occupied by the subject. I'm now combining them into one image, and lining them up. In many cases the layers are 90% or more 100% transparent. But to select with a click and drag, I have to go around all the blank bits I cannot see, which is messy and prone to errors. Can anyone please tell me of a quick way to crop down to the part in a layer that actually has useful non-blank pixels in it? I suspect that this would also release a LOT of memory, and make working with this image more pleasant in general! Thank You, Nick Quote Link to comment Share on other sites More sharing options...
walt.farrell Posted November 30, 2020 Share Posted November 30, 2020 It woud help to have one or two of your PNG layer files to experiment with. 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...
Starbase1 Posted November 30, 2020 Author Share Posted November 30, 2020 Thanks for the response. Sample attached! I dragged and dropped the files into the picture, to get all the elements in layers. If possible I'd rather not start again, (I suspect if I had moved them into the same file with copy / paste that might have done it...) Quote Link to comment Share on other sites More sharing options...
Pšenda Posted November 30, 2020 Share Posted November 30, 2020 Rasterize & Trim. Quote Affinity Store (MSI/EXE): Affinity Suite (ADe, APh, APu) 2.4.0.2301 Dell OptiPlex 7060, i5-8500 3.00 GHz, 16 GB, Intel UHD Graphics 630, Dell P2417H 1920 x 1080, Windows 11 Pro, Version 23H2, Build 22631.3155. Dell Latitude E5570, i5-6440HQ 2.60 GHz, 8 GB, Intel HD Graphics 530, 1920 x 1080, Windows 11 Pro, Version 23H2, Build 22631.3155. Intel NUC5PGYH, Pentium N3700 2.40 GHz, 8 GB, Intel HD Graphics, EIZO EV2456 1920 x 1200, Windows 10 Pro, Version 21H1, Build 19043.2130. Link to comment Share on other sites More sharing options...
walt.farrell Posted November 30, 2020 Share Posted November 30, 2020 Rasterize & Trim... (from the right-click menu in the Layers panel, or from the Layer menu) is a good way to go, as Pšenda suggests. 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...
carl123 Posted December 1, 2020 Share Posted December 1, 2020 Document > Clip Canvas in APhoto Quote To save time I am currently using an automated AI to reply to some posts on this forum. If any of "my" posts are wrong or appear to be total b*ll*cks they are the ones generated by the AI. If correct they were probably mine. I apologise for any mistakes made by my AI - I'm sure it will improve with time. Link to comment Share on other sites More sharing options...
Starbase1 Posted December 1, 2020 Author Share Posted December 1, 2020 Thanks to those who suggested it, Rasterise and trim did what I needed. It's now MUCH easier to select the layers I want with click and drag. Though I was a little surprised on saving that the file was about 50% larger... Quote Link to comment Share on other sites More sharing options...
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