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Continue to ChatQuery : Photoshop, change canvas size ADDS to existing canvas size rather than change Here's me changing canvas size to 100X10 inches: Then I click OK, and then when I go to Image > Canvas to peep https://vmapp.org/query/61787/Photoshop-Change-Canvas-Size-ADDS-To-Existing-Canvas-Size-Rather-Than-Change-Here-S-Me-Changing-Canvas-Size-To-100X10-Inches-Then-I-Click-OK-And-Then-When-I-Go-To-Image-Canvas-To-Peep/