To change Sales Orders from printing with the Standard Template to the Advanced PDF Template, the desired Advanced PDF Template must be set as the preferred template for sales orders. This is achieved through the customization of transaction forms or document templates within NetSuite's settings. By selecting an Advanced PDF Template as preferred, all sales orders will automatically use this template for printing, providing a consistent and customized output. This approach allows for greater flexibility and customization in how transaction documents are presented and printed.References: NetSuite Help Center and SuiteAnswers, specifically the sections on customizing document templates and setting Advanced PDF Templates as preferred for specific transaction types.