If you want to trim away parts of a PDF file in Preview, go to the Tools menu and choose Rectangular Selection (instead of Text Selection) and then drag the cursor around the area of the file you want to use. (As an alternative, you can also click on Tools in the Preview menu bar and choose Crop.) Click and drag the blue dots on the corners and center of the outlined box on the screen to adjust the selected portion of the image and then press the Command and K keys to delete everything outside dotted lines. To crop a photo or graphic open on your screen, you must first select the area of the image you want to keep.ĭrag the mouse cursor over the part of the photo you want, which creates a dotted line around the area. You can crop photos, graphics and PDF files right in Preview, the Mac’s built-in image-editing and viewer program. How do you crop an image in the Mac Preview program? I don’t see a cropping icon in the tool bar.
