The easiest way to customize a wedding contract template is to find a sample template that suits your individual needs. There are sites on the Web that offer sample contracts for wedding planners, wedding photographers, wedding venues and anything else you might need to have contractually bound.
When customizing a wedding contract template, it's important to clearly state what your needs are from the other party. Wedding photographers are an integral part of recording the day, so designing a contract for them might include expectations about cancellations, length of time they will be paid for, and who will pay for any lodging or food expenses. Adjusting the photographer contract template to fit your specific requirements ensures that nothing is overlooked.
If you are working with a wedding planner, it's highly likely that you will need a written contract to go forward working together. You need to work out details of the ceremony, decorations, music and a number of other things with the planner. A thorough understanding of what the wedding planner's official duties will be should be tailored to fit your needs. Often, templates have sections that are irrelevant to what your vision is, and they should be omitted to not cause confusion or waste time.