Presenting information in print form can involve very different presentation decisions than displaying information in a web-friendly form. Display can vary from one platform to another, or one format may have features unavailable in another. In a transform performed by ePublisher Designer, the user can make several customization choices through various GUI options. For example, Target Settings may allow a user to specify whether a certain piece of information is displayed, or how or where it is located on a page. The Style Designer allows the user to customize any style in the document to appear a certain way. By creating specific rules and conditions for how the document should appear when the transform is complete the user can add functionality or information for specific audiences, or make use of specific features of a given format.

By using XSL, ePublisher Designer allows the user to customize the process even further. The user may make additions, deletions, or modifications to the XSL files in ePublisher Designer to further customize the output. The user may even add, remove, or modify options available in Target Settings and Style Designer.