How to make the background picture of photos in ppt?

1. First, open PPT, switch to the Insert tab, then click the picture to select a photo to insert in the Insert Picture window, and click OK to insert the picture.

2. After inserting the picture, drag the control button on the edge of the picture and hold down the shift key to enlarge it in equal proportion. If you drag it directly, it will destroy the scale of the original image.

3. Because the layout of ppt is 4:3 by default, if the inserted picture is this ratio, you can directly fill the whole layout (the picture size should be large).

4. For a single picture with a single layout, you can directly modify the size of the picture to fill it. After inserting a picture, right-click "Set Picture Layout", select "Size" on the left to cancel "Lock Aspect Ratio", and then enter the width of 25.4 and the height of 19.05 in the size position. The default size is 4:3 layout.

5. If the whole ppt uses the same background picture, you can do this: switch to the design tab, click the background style on the right, and select Set Background Format.

6. Switch to Fill, click Fill Picture or Arts and Sciences, select Insert from File, and then select the picture to be inserted as the background in the pop-up window.

7. After confirming the picture, you can adjust the extension of the picture, click the up and down arrows behind the direction offset or directly enter numbers to adjust the position of the picture, so that the main body can be displayed in the layout.