Now all the chosen photos will have a new resolution. Once you have entered the new size for all your images, hit okay. Again select open with, choose Preview, and it will open.Īfter that, click on the Tools menu and select adjust the size. If you want to change the resolution of an image, right-click on one of them. But worry not because, with Preview on your Mac, you can make these changes very easily. Opening each file and making the change is a waste of time and energy and can make you frustrated. If you need to do it for work often, we are sure that you get tired of doing it. Modify multiple files simultaneously: It could be quite time-consuming for you if you need to modify multiple files at once.It is predominantly known as mac photo editing software. This software helps you edit your PDF files, add signatures to the files and even edit some pictures. If you want to know about the same, kindly read the rest of this blog. Its job is way more than just allowing you to open and view images. It is one of the stock apps that come preloaded on your Mac. Pay a bit more attention, and you will be able to make the most of the Preview software. This is an unassuming software that can do many jobs for you. If you own a MacBook, we are pretty sure that you have seen the Preview application on the system many times.