Mr Lucky Posted May 9, 2020 Share Posted May 9, 2020 When exporting to png, why would smaller dimensions cause a larger file size? Quote Link to comment Share on other sites More sharing options...
John Rostron Posted May 9, 2020 Share Posted May 9, 2020 As far as I am aware, the compression algorithm used by png depends on the relative frequencies of sequences of bit patterns. This means that whilst, in general, a file with many pixels will have a bigger file size than one with fewer pixels, at the local level, there may be discrepancies such as you have observed. John Quote Windows 10, Affinity Photo 1.10.5 Designer 1.10.5 and Publisher 1.10.5 (mainly Photo), now ex-Adobe CC CPU: AMD A6-3670. RAM: 16 GB DDR3 @ 666MHz, Graphics: 2047MB NVIDIA GeForce GT 630 Link to comment Share on other sites More sharing options...
Pšenda Posted May 10, 2020 Share Posted May 10, 2020 ... in general, the more pixels with the same color in the image, the better the compression (lossless) will be. Just try to break up large areas with noise. The image will look more natural, but the file size will increase. And you may see the expected behavior (smaller dimensions = smaller file). 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...
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