An electronic apparatus comprising: a display having a first screen; a communication circuit configured to communicate with an external apparatus; and a processor configured to: display a first content image corresponding to image content data on a partial playback area, within an entire playback area of the first screen, obtain capture data corresponding to the first screen within which the first content image is displayed, and transmit the capture data corresponding to the first screen to the external apparatus through the communication circuit to perform mirroring on a second screen of the external apparatus based on the capture data, such that a second content image corresponding to the image content data is displayed on a partial playback area, within an entire playback area of the second screen, wherein the partial playback area of the first screen corresponds to the partial playback area of the second screen, characterized in that the processor is further configured to: in response to receiving, from the external apparatus, a signal indicating a user input to request a change in a size of the partial playback area of the second screen, transmit: address information from which the image content data is obtainable, to the external apparatus through the communication circuit, such that a third content image corresponding to the image content data and having a size of a playback area of the third content image within the second screen different from the size of the partial playback area of the second screen, is displayed on the second screen of the external apparatus based on the address information, and maintain displaying the first content image on the partial playback area of the first screen. a display having a first screen; a communication circuit configured to communicate with an external apparatus; and a processor configured to: display a first content image corresponding to image content data on a partial playback area, within an entire playback area of the first screen, obtain capture data corresponding to the first screen within which the first content image is displayed, and transmit the capture data corresponding to the first screen to the external apparatus through the communication circuit to perform mirroring on a second screen of the external apparatus based on the capture data, such that a second content image corresponding to the image content data is displayed on a partial playback area, within an entire playback area of the second screen, wherein the partial playback area of the first screen corresponds to the partial playback area of the second screen, characterized in that the processor is further configured to: in response to receiving, from the external apparatus, a signal indicating a user input to request a change in a size of the partial playback area of the second screen, transmit: address information from which the image content data is obtainable, to the external apparatus through the communication circuit, such that a third content image corresponding to the image content data and having a size of a playback area of the third content image within the second screen different from the size of the partial playback area of the second screen, is displayed on the second screen of the external apparatus based on the address information, and maintain displaying the first content image on the partial playback area of the first screen. display a first content image corresponding to image content data on a partial playback area, within an entire playback area of the first screen, obtain capture data corresponding to the first screen within which the first content image is displayed, and transmit the capture data corresponding to the first screen to the external apparatus through the communication circuit to perform mirroring on a second screen of the external apparatus based on the capture data, such that a second content image corresponding to the image content data is displayed on a partial playback area, within an entire playback area of the second screen, wherein the partial playback area of the first screen corresponds to the partial playback area of the second screen, characterized in that the processor is further configured to: in response to receiving, from the external apparatus, a signal indicating a user input to request a change in a size of the partial playback area of the second screen, transmit: address information from which the image content data is obtainable, to the external apparatus through the communication circuit, such that a third content image corresponding to the image content data and having a size of a playback area of the third content image within the second screen different from the size of the partial playback area of the second screen, is displayed on the second screen of the external apparatus based on the address information, and maintain displaying the first content image on the partial playback area of the first screen. in response to receiving, from the external apparatus, a signal indicating a user input to request a change in a size of the partial playback area of the second screen, transmit: address information from which the image content data is obtainable, to the external apparatus through the communication circuit, such that a third content image corresponding to the image content data and having a size of a playback area of the third content image within the second screen different from the size of the partial playback area of the second screen, is displayed on the second screen of the external apparatus based on the address information, and maintain displaying the first content image on the partial playback area of the first screen.