Yellow Star

Place your cursor where you would like the image to appear in Pages.

Yellow Star

From the toolbar, choose Media. Decide among the below-mentioned possibilities

Choose if the image is on your PC or somewhere else, and then insert it into your document. Find the image, click it to select it, then choose Insert

Choose the image if it is in the Photos app.

You can drag images from your desktop or open folders directly into Pages. An image of your signature will appear on your document

Drag a corner to resize something while keeping the aspect ratio. 

By selecting the image and selecting the Format option from the toolbar, you can also open the sidebar. Then, select the Arrange tab and change the measurements in the Side Panel's Size section.