To add a border to a picture in a Word document, follow these steps:
1. Select the picture you want to add a border to.
2. Use the Line Style button on the Drawing toolbar or on the Picture toolbar. Click the arrow next to this button to select the line style you want. For embedded pictures, the Drop-down menu that you open is grayed out, indicating that you cannot use it directly. You can rotate the picture (you can also change the layout of the picture), the control point around the picture from black to white, and then open the "line Style" menu, it has been optional.
3. Click the arrow to the right of the line Color button on the Drawing toolbar to set the border color, and click the Dashed Line Style button to select a type of dotted border.
Tip: Right-click on the picture, select Format picture, and switch to the colors and Lines tab to set the line style, color, actual situation, and thickness of the picture's border directly in the dialog box.
Of course, it is also possible to add a border directly to an inline picture, as follows:
1. Select the picture.
2. Perform "format" → "Border and shading", or right-click on the picture, select borders and shading, and open the Borders dialog box.
3. In the dialog box, set the line style, color, and width of the picture's border. Compared to the above method, it can set a different border for the four edges of the picture.
The animation of the specific operation process is as follows: