brulaha Posted February 16, 2019 Posted February 16, 2019 Hi All, Is there any way to resize images without re-sampling using a specific output? For example, I took a quick screen shot of an image, and wanted to print it to an 8.5 x 11 sheet of paper. Since I wanted decent resolution, I used a 4k monitor and screen shot the entire screen yielding an image at 2726 px by 2056 px. I wanted to resize this to an 8.5 x 11 output but I can't find a way to do that. Export only allows for pixel calculations and requires re-sampling. The resize dialog only allows you to enter dpi which is a frustrating guessing process to achieve the desired result. There has to be a simpler way. Photoshop makes this so easy. I bought this because I'm not down with the subscription model Adobe uses. Is there something I'm not thinking of or seeing. This basic functionality. Even if there was a simple online calculator I could see using that, but none of the ones I looked at provide a simple way to determine target dpi based on a constrained output like 8.5 x 11. If you know of one please share. -Thoughtfully frustrated :)
R C-R Posted February 17, 2019 Posted February 17, 2019 2726 x 2056 & 8.5 x 11 have different aspect ratios so there is no way to convert one to the other without resampling or cropping. All 3 1.10.8, & all 3 V2.6 Mac apps (currently 2.6.4); 2020 iMac 27"; 3.8GHz i7, Radeon Pro 5700, 32GB RAM; macOS 10.15.7 All 3 V2 apps for iPad; 6th Generation iPad 32 GB; Apple Pencil; iPadOS 15.7
brulaha Posted February 17, 2019 Author Posted February 17, 2019 Yes your right. Let me ask the question a different way. When I use the resize dialog, and unchecked re-sample, I lose the ability to edit units and can only edit the DPI. Since i want to print to an 8.5 x 11, it would be helpful to edit the unit instead of the DPI. Editing the DPI results in a guessing game to get the desired result. Have you found another way to do this, or is there a calculator you use that eliminates the guessing when trying to reduce an image to print on a piece of paper? In this case I didn't care it wasn't a perfect one to one aspect ratio match. I just wanted to easily understand my constraining dimension, and then adjust the DPI to give me an output size of roughly 8.5 x 11.
walt.farrell Posted February 17, 2019 Posted February 17, 2019 Your current pixel dimensions , at 300 DPI, are about 6 x 9 inches, I think. That's close enough to 8.5 x 11 that I might just print it and tell Photo to scale to fit during printing. Or else I'd resize it as close as I could get, and let the resize operation resample. Resampling isn't something bad. But if you really want to avoid resampling, any calculator can tell you that 2056 px / 8.5 " is about 241 px/inch (aka DPI on the Affinity dialogs). -- Walt Designer, Photo, and Publisher V1 and V2 at latest retail and beta releases PC: Desktop: Windows 11 Pro 23H2, 64GB memory, AMD Ryzen 9 5900 12-Core @ 3.00 GHz, NVIDIA GeForce RTX 3090 Laptop 1: Windows 11 Pro 24H2, 32GB memory, Intel Core i7-10750H @ 2.60GHz, Intel UHD Graphics Comet Lake GT2 and NVIDIA GeForce RTX 3070 Laptop GPU. Laptop 2: Windows 11 Pro 24H2, 16GB memory, Snapdragon(R) X Elite - X1E80100 - Qualcomm(R) Oryon(TM) 12 Core CPU 4.01 GHz, Qualcomm(R) Adreno(TM) X1-85 GPU iPad: iPad Pro M1, 12.9": iPadOS 26.0, Apple Pencil 2, Magic Keyboard Mac: 2023 M2 MacBook Air 15", 16GB memory, macOS Sequoia 15.6.1
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