What is a trial proof in the context of printmaking?

A trial proof in printmaking serves as a crucial step in the artistic process, allowing the artist to assess and refine their work before completing the final print. By creating a trial proof, the artist can evaluate the composition, tonality, and overall image quality. This type of proof is often made early in the printing process, during the carving or development stages, to ensure that any necessary adjustments can be made while still in the experimental phase. The primary purpose of a trial proof is to provide a tangible representation of the work in progress, aiding the artist in honing the final outcome.

The other options relate to different aspects of print production but do not align with the specific function of a trial proof. For example, a print made during final editing refers to a later stage in the process where adjustments are minimal, while promotional prints focus on marketing rather than refining artistic technique. Similarly, a print made for comparison would not serve to facilitate corrections or enhancements to the original image but rather to draw distinctions between different pieces.