A document data processor system includes means for evaluating a user's impression of a layout of a document, and means for storing the evaluation information. The system also includes means for storing document design knowledge regarding the layout of multiple standard documents. The system allows a user to create a new document based on the stored document design knowledge and the stored evaluation information so that new documents are created in accordance with user's desires, as reflected by previous document evaluations. In addition, a draft document that is being created may be re-formatted based on a user's evaluation of the draft.