A background is displayed behind the text or image. You can use a solid color, an image, or a file to be a background. Changing the backgrounds of PDFs can make you read more comfortably.
Add Background Individually
1. Open your file with PDF Reader Pro Mac;
2. Choose Tools on the main menu -> Background -> Add Background;
3. Or click Editor on the toolbar -> Background -> Add Background;
4. Choose the source of the background in the dialog box -> Color/File, and the ratio of the background file can be modulated by yourself. You can also set the appearance of the background, including Rotate, Opacity, and Page Range, then click Save and Apply;
5. You can click Batch in the left corner.
Add Background in Batches
1. Open your file with PDF Reader Pro Mac;
2. Choose Tools on the main menu -> Background -> Batch Add Background;
3. Or click Editor on the toolbar -> Background -> Batch Add Background;
4. Choose Add Files on the upper left of the dialog box -> Select Files/Add Recent Files, and then you can choose the files you need;
5. On the right of the dialog box, you can choose Color/File, then click Apply, and select the save address.
Note:
You can rename the background and add it to the Template, so you can use the same background easily.