| abstract |
A lithographic printing plate precursor includes: a support having a surface, a contact angle of water droplet in air on which is 70° or more; and a photosensitive layer, wherein the support has a compound having a functional group X on a surface of the support, the functional group X is a functional group capable of being decomposed to convert to a functional group Y, when the functional group X is treated with an aqueous solution having pH of from 2 to 10, so as to decrease the contact angle of water droplet in air on the surface of the support to 30° or less. |