That brings up this, with all the image editing options included: Remembering that the heritage of Preview is PDF documents, go to View and choose Show Markup Toolbar. That’s way bigger than I need for any online purposes, so it’s an excellent candidate for our reduction process! It’s big, taking up 8.3MB of space on my computer. You can see that I’ve also popped up the General Info window (access it from View > Show Inspector) where you can see this is a JPEG format image with a size of 4032 x 3024 pixels. Opening up the rather huge image directly off my phone in Preview, here’s what I see: My first task will be to crop it, then I’ll shrink it down to a size that’s more appropriate for sharing online (for example, in this blog post!)

To demonstrate the basics, I’m going to use a photo of a 2020 Toyota Corolla Hybrid that I need to edit anyway. Apple says supported formats do include JPEG, PNG, PSD, and TIFF, however, so that’s a pretty good range! But images from your iPhone, for example, or screen captures that you grab yourself are both going to work just fine. To be fair, Preview doesn’t support dozens of file formats so if you’re getting your images in a relatively obscure format from a friend with a PC or similar, you might hit a snag. But it turns out that the program offers so much more, from supporting you filling in PDF forms to adding a password to keep your PDF docs secure, editing, cropping, even adjusting colors on a photo or any other graphical file on your system. I’m talking about Preview, a program that most people associate with letting you read PDF documents. One of the great software tools included with MacOS X on your Mac system is an app you’ve used many times, never realizing it has edit capabilities.

Crop picture in preview mac os