Remember you can both increase an image resolution or decrease an image resolution by resizing this way. The newly resized picture will be where you saved it to the Mac Finder, or it will be the old file if you saved over the existing image.

Assuming you chose “Save As” pick a new file name, choose a file destination, select the appropriate file format, and optionally adjust the image quality, then click on “Save” to save the resized image.

Once satisfied with the resized picture, go to the “File” menu and choose either “Save” to save the resized image over the existing file, or choose “Save As” to save the freshly resized image as a new separate image file.

The image in Preview will instantly resize to the resolution dimensions chosen in the prior step, if unsatisfied repeat the above steps to resize the picture again, otherwise move to the next step.

At the ‘Image Dimensions’ screen choose the new width and height in pixels (or inches, cm, mm, points, as a percent) to resize the picture to, to scale and resize proportionally be sure the “Scale proportionally” option is checked – click on “OK” when satisfied with the new image dimensions to resize to.

Pull down the “Tools” menu and choose “Adjust Size”.

Open the image file you want to resize into Preview on the Mac, since Preview is typically the default image viewer you can just double-click a picture in Finder to launch into it.Locate the picture in the Mac file system that you want to resize.In this walkthrough we will take a wide panorama image from the Grand Canyon and resize it from a very large wide resolution to a smaller image resolution, reducing the image dimensions and file size in the process. Note the method we are covering here aims to resize a single picture file, if you have multiple images to resize into the same dimensions you’d likely want to use this batch resize method for Mac instead. Whatever the purpose, we’ll show you the fastest way to resize a photo on the Mac using Preview.

Additionally, resizing a picture can be useful to shrink down the file size of an image as well, since a smaller resolution tends to have a smaller file size footprint. There are many reasons to resize pictures, whether to make them better fit into a document, webpage, email, as a wallpaper, or for many other purposes.

Resize image for youtube channel mac