If you add an image to your document, you can use Markup to add shapes, text, and callouts to it within TextEdit. You can even draw on your image using your trackpad.
Move your pointer over an image, click the Markup pop-up menu , then choose Markup.
If you don’t see the pop-up menu, you may need to enable Markup. Choose Apple menu > System Preferences, click Extensions, click Actions, then select the Markup checkbox.
Use the tools in the toolbar to mark up the image (or use the Touch Bar).
Sketch a shape using a single stroke.
If your drawing is recognized as a standard shape, it’s replaced by that shape; to use your drawing instead, choose it from the palette that’s shown.
Draw a shape using a single stroke. 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.
Click a shape, then drag it where you want. To resize the shape, use the blue handles. If it has green handles, use them to alter the shape.
You can zoom and highlight shapes using these tools:
Zoom : Drag the lens where you want. To increase or decrease the zoom, drag the green handle; drag the blue handle to change the lens size.
Highlight : Drag the highlight where you want. To resize it, use the blue handles.
Type your text, then drag the text box where you want.
If signatures are listed, click one, then drag it where you want. To resize it, use the blue handles.
To create a new signature:
Using your trackpad: Click Trackpad, click the text as prompted, sign your name on the trackpad using your finger, then click Done. If you don’t like the results, click Clear, then try again.
If your trackpad supports it, press your finger more firmly on the trackpad to sign with a heavier, darker line.
Using your computer’s built-in camera: Click Camera. Hold your signature (on white paper) facing the camera so that your signature is level with the blue line in the window. When your signature appears in the window, click Done. If you don’t like the results, click Clear, then try again.
Change the thickness and type of lines used in a shape, and add a shadow.
Change the color of the lines used in a shape.
Change the color that’s used inside a shape.
Change the font or the font style and color.
To crop an image, move your pointer near the edge of the image, then drag the blue handles to adjust the size of the cropping window. To move the cropping window, move your pointer to the edge of the image and between the blue handles, then drag the window where you want it.