![]() ![]() The crop tool acts more like the crop tool in Lightroom. So, if you want to crop away part of your photo and not accidently add or drop pixels in the remaining area, leave the resolution blank! You can always change the image size on output.īTW, in CS6, the resolution option is gone. If we select 4x4 300 dpi, the final crop size is 1200x1200. If we select 10x10 150 dpi, the final crop size is 1500x1500. If we select 10x10 300 dpi and crop the same area, the final image size is now 3000x3000. If we select 5x5 300 dpi and crop, the final image size will be 1500 x1500. Now, if we put 5x5 or 10x10 or 20x20 in the height/width and NO resolution and crop this area, they will all be exactly 1500 by 1500 pixels when we crop. ![]() So let's imagine several possibilities of cropping this same area. We can easily do the math in our head and know that this space is 1500 pixels by 1500 pixels. Now lets pretend that we want to crop the upper left quadrant of the image (i.e. It will logically result in an image size of 3000 pixels by 3000 pixels. You can try this if you want.Ĭreate a new image 10" by 10" at 300 dpi. So let's get back to what happens when we fill something in the resolution box. It simply provides an aspect ratio to the area being cropped. ![]() When leaving the resolution blank you can put in 4" by 5" or 8" by 10" or any other multiple of 4 x 5 and get the EXACT same results. This is just like taking scissors and cutting away the parts that you don't want and leaving the remaining pixels exactly as they were. ![]() Ziggy was correct that in most cases, you want to simply put in your height and width as an aspect ratio and leave the resolution blank. Cropping at output dpi is no guarantee that you aren't resampling. It indeed can upsample or down sample, depending on the selections you make in the height, width, and resolution boxes. The cropping tool was designed to either just crop, or crop and resample. This has been an issue since the Photoshop cropping tool has existed. My point to the OP was to always crop at output dpi, no matter the output. Resampling only happens when you alter the image size in the image size function. If you put 72 or 720, it won't resample it will only use available pixels. ![]()
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