A home appliance comprising: a display provided on the front surface of the home appliance; a storage ; a communication interface including a circuit; and a processor configured to: provide a board screen on the display, based on receiving an image through the communication interface, identify a display size of the image on the basis of resolution information of the image, and add the image onto the board screen on the basis of the identified display size, based on detecting a first touch input with respect to the image, adjust at least one of a display location or a display size of the image to correspond to the first touch input, and based on detecting a second touch input with respect to the board screen, add a drawing object corresponding to the second touch input onto the board screen, wherein the processor stores information on the image and information on the drawing object added to the board screen in the storage, characterized in that the storage stores user identification information and user device information corresponding to a plurality of users, and wherein the processor is further configured to: recognize a text based on the drawing object, identify at least one user among the plurality of users on a basis of the text and the stored user identification information, and transmit information related to the drawing object through the communication interface based on the user device information corresponding to the identified at least one user. a display provided on the front surface of the home appliance; a storage ; a communication interface including a circuit; and a processor configured to: provide a board screen on the display, based on receiving an image through the communication interface, identify a display size of the image on the basis of resolution information of the image, and add the image onto the board screen on the basis of the identified display size, based on detecting a first touch input with respect to the image, adjust at least one of a display location or a display size of the image to correspond to the first touch input, and based on detecting a second touch input with respect to the board screen, add a drawing object corresponding to the second touch input onto the board screen, provide a board screen on the display, based on receiving an image through the communication interface, identify a display size of the image on the basis of resolution information of the image, and add the image onto the board screen on the basis of the identified display size, based on detecting a first touch input with respect to the image, adjust at least one of a display location or a display size of the image to correspond to the first touch input, and based on detecting a second touch input with respect to the board screen, add a drawing object corresponding to the second touch input onto the board screen, wherein the processor stores information on the image and information on the drawing object added to the board screen in the storage, characterized in that the storage stores user identification information and user device information corresponding to a plurality of users, and wherein the processor is further configured to: recognize a text based on the drawing object, identify at least one user among the plurality of users on a basis of the text and the stored user identification information, and transmit information related to the drawing object through the communication interface based on the user device information corresponding to the identified at least one user. recognize a text based on the drawing object, identify at least one user among the plurality of users on a basis of the text and the stored user identification information, and transmit information related to the drawing object through the communication interface based on the user device information corresponding to the identified at least one user. <EOS>