1. According to the query of Sohu News Network, the material difference: the material of photosensitive seal is resin or metal, while the material of ink return seal is rubber.
2. The difference of using scenes: photosensitive seals are used for high-definition and high-resolution printing needs, important documents, contracts, etc., while ink-returning seals are used for daily office and study scenes because of their convenience and ease of use.