How do you manually change the height of an image in PowerPoint?

The method of using the Picture Tools Format tab to manually change the height of an image in PowerPoint is a precise approach that allows for exact measurements. When you select an image, the Picture Tools Format tab appears in the ribbon, providing access to various formatting options specifically for images. By typing in the desired height value in the Height box, you can ensure that the image is adjusted to a specific size, which is especially useful in maintaining consistency across slides or achieving the desired visual layout.

This option allows for a level of control and accuracy that is not easily achievable through other methods. For example, while dragging corners allows for proportional resizing, it does not let you set a specific height. The right-click menu offers resizing options, but these typically do not provide an exact numeric input for height. Adjusting the height from slide layout options is also not applicable to individual image heights and is more focused on the overall structure of the slide. Thus, using the Picture Tools Format tab and entering the desired height provides the most effective and precise method for manually adjusting image height in PowerPoint.