In case you resized a photo to the wrong size, or simply do not like how the resized photo turned out, you can follow the steps below to undo the photo resize.ġ. This is happening because the images that you have selected for resizing are in various units of measurement. In such a case, you can still resize images on your Mac by choosing to resize images in Percent (See image above). While trying to Resize images on Mac, you may find the preview App displaying the words “Multiple Values” for Width, Height and Resolution Fields (See image below). Repeat the step above in case the selected Photos open in separate or multiple windows.ģ. Next, click on Edit form the top menu bar on your Mac and then click on Select All option in the drop-down menu (See image below).Ĥ. Once the Photos are selected, click on Tools from the top menu bar of your Mac and then click on Adjust Size… option in the dropdown menu.ĥ. On the next screen, make sure that the option to Scale Proportionally is selected and then enter the new size (Height or Width) for the Photos and click on the Ok button (See image below). Note: All selected Photos should open in a single window. Note: You could also quickly select photos by dragging your Mouse over them.Ģ. Once the Photos are selected, right-click on one of the photos that you want to resize and then select Open with > Preview option in the contextual menu (See image below). Press the command key on the keyboard of your Mac and then select the Photos that you want to resize The Preview app also allows you to resize multiple photos and you can use this option in case you have too many images to be resized.ġ.
72 – 150 pixels – For images to be used on websites.This is helpful, in case you are also trying to reduce the size of the image.įollowing are the recommended image resolutions for images, based on where you want to use them. Making the photo Scale proportionally ensures that any change that you make to the width of the photo will result in a proportional change in the height of the photo and vice-versa.Ĥ. Next, you can choose whether you want to resize the image in pixels, centimeters, inches, percent, millimeters or points (See image below)ĥ. After selecting the resizing Unit, enter the new dimensions (Width or Height) for your image (See image below)Ħ. As you can see in the image above, the Preview App also allows you to change the Resolution of the images. On the next screen, make sure that the option for Scale proportionally is checked (See image below) Once the Photo opens in the Preview App, click on Tools from the top menu bar of your Mac and then click on Adjust Size... option in the drop-down menu.ģ. Note: If you have chosen a different App as your default Photo viewer, then right click on the photo and select Open with > Preview.Ģ. Double click on the Photo that you want to Resize and allow it to open in the Preview app. Resize Photos on Mac Using Preview Appįollow the steps to Resize Photos on Mac using the Preview App.ġ. In case you want to keep the original photo, make a copy of the original photo and then resize the copied photo. Note: When you resize photos using the Preview App, you will end up losing the original photo as it will be replaced by the resized photo.
However, you can easily get around this limitation by simply dragging your Photos from Photo app to your Desktop or any Folder on your Mac. The only place where this method does not work is within the Photos App on your Mac.