1. A method for optimizing a layout of a document constructed based on a template document, the template document comprising a plurality of individually-specified components including one or more individually-specified user-content components configured to receive user content from a user of the template document, the method comprising: generating an energy model of the layout of the user-content components in the user document based on original positions and sizes of the corresponding user-content components in the template document; and adjusting one or more positions of corresponding respective user-content components in the user document to minimize the energy of the user-content component layout in the user document, the energy of the user-content component layout calculated based on a deformation energy of spacing between user-content components in the layout and one or more of user-content component overlap energy, background overlap energy, color proximity energy, and font size reduction energy.