Open Photos for me In the Photos app on your Mac, double-click a photo, then click Edit in the toolbar.

Use the tools that appear in the toolbar to mark up the photo.

To adjust a markup, move the pointer near the edges, then drag the blue handles.

If your drawing is recognized as a standard shape, its replaced by that shape; to use your drawing instead, choose it from the palette thats shown.

Press your finger more firmly on the trackpad to draw with a heavier, darker line.

This tool appears only on computers with a Force Touch trackpad.) Shapes: Click a shape, line, or arrow, then drag it where you want.

Enlarge: Click the Shapes button, then click the Loupe button.

To increase or decrease the magnification, drag the green handle; drag the blue handle to change the loupe size.

You can place multiple loupes on a photo to magnify specific areas.

Tip: To further magnify an area, create another loupe (press and hold the Option key while you drag an existing one), then position it over the other loupe, using the alignment guides to adjust its position.

Text: Click the Text button, type your text, then drag the text box where you want.

Rotate Left: Click the Rotate Left button to rotate the photo to the left.

To rotate the item to the right, press and hold the Option key, then click the Rotate Right button until youre done rotating the item.

Crop: Drag the corner handles until just the area you want to keep is shown within the frames border.

Annotate: Annotate the item by sketching or drawing on it using your nearby iPhone or iPad.

The Annotate button appears blue when your device is connected; to disconnect your device, click the button again.

See the Apple Support article System requirements for Continuity on Mac, iPhone, iPad, iPod touch, and Apple Watch.

To change the attributes of selected drawings, shapes, text, and signatures, do any of the following.

Click Save Changes.

To change a marked-up photo later, select it, then click the Extensions button and choose Markup again.

See also Edit a Live Photo in Photos on Mac Retouch a photo to fix marks and blemishes in Photos on Mac Crop and straighten photos in Photos on Mac.

Photoshop For Mac 10.10.5