A non-transitory computer-readable storage medium storing a program that, when executed by a computer, causes the computer to perform an image processing method, the image processing method comprising:
- inputting image data based on an image of a document;
- designating a chat room of a chat service provided by a chat server;
- receiving selection, by a user, of user information from a plurality of pieces of user information corresponding to a plurality of users included in the designated chat room;
- and
- transmitting the input image data, account information and the selected user information independent of the account information to the chat server,
- wherein, using the transmitted account information, the input image data and a message indicating that a transmission source user of the input image data is the user indicated by the selected user information are posted to the designated chat room.