You can remove a background or color from an image with the Remove Background tool.
Go to the Pages app on your Mac.
Open a document with an image, then click the image to select it.
Click the Image tab in the Format
You can open the Adjust Image controls in a separate window that you can move anywhere. Choose View > Show Adjust Image (from the View menu at the top of your screen).
To restore the image’s original settings, click Reset, or click Reset Image in the Adjust Image window.
To work with multiple images at the same time, hold down the Shift key while you click the images.
Tip: You can also Resize, rotate, and flip objects in Pages on MacPosition and align objects in Pages on Mac