About macros
You can automate tasks with a macro for those tasks you perform repeatedly in Microsoft PowerPoint. A macro is a series of commands that is stored in a Microsoft Visual Basic module and can be run whenever you need to perform the task.
Recording macros
When you record a macro, PowerPoint stores information about each step you take as you perform a series of commands. You then run the macro to repeat or "play back" the commands. If you make a mistake when you record the macro, corrections you make are also recorded. Visual Basic stores each macro in a new module attached to a presentation.
Making a macro easy to run
You can run a macro by choosing it from a list in the Macro dialog box. To make a macro run whenever you click a particular button or press a particular key combination, you can assign the macro to a toolbar button, a keyboard shortcut, or an object in a presentation.
Managing your macros
After you record a macro, you can view the macro code with the Microsoft Visual Basic Editor to correct errors or change what the macro does.
The Visual Basic Editor is a program designed to make writing and editing macro code easy for beginners, and provides plenty of online Help. You don't have to learn how to program or use the Visual Basic language to make simple changes to your macros. With the Visual Basic Editor, you can edit macros, copy macros from one module to another, copy macros between different presentations, rename the modules that store the macros, or rename the macros.
Macro security
PowerPoint provides safeguards against viruses that can be transmitted by macros. If you share macros with others, you can certify them with a digital signature so that other users can verify that they are from a trustworthy source. Whenever you open a presentation that contains macros, you can verify their source before you enable them.