With MobiPDF, you can access controls that allow you to layer objects and place them in front or behind one another.
These controls are found in the "Editing" tab.
The Arrange options let you move an image or object in front of or behind other objects. You can push an item forward or back just one level or send it to the front or back of the stack of other elements.
Here is how you can efficiently manipulate each element in your PDF.
1. Open your PDF file with MobiPDF.
2. Click Edit, then select Images.
3. Left-click to select an image or an object in the document.
4. Choose any of the options under the Properties panel.