A display control apparatus which is configured to display on a display unit a user interface screen for an image data generating apparatus configured to generate image data representing a document using an image sensor, the display control apparatus comprising: an operation unit configured to receive an image read request from a user for causing the image data generating apparatus to generate image data representing a document using the image sensor, a setting acquiring unit which is configured to acquire a setting value, for a document scan based on the image read request, for generating the image data representing the document; a display determining unit which is configured, when an image read request has been received from the user through the operation unit, to determine, before the image data generating apparatus generates image data representing the document using the image sensor, whether to display an update reception screen based on the acquired setting value, wherein the update reception screen is for receiving an update instruction of a color conversion profile from a user, and wherein the color conversion profile is for converting color data of a color system depending on the image data generating apparatus into color data of another color system; a display control unit which is configured to display the update reception screen on the display unit if the display determining unit determines to display the update reception screen, and is configured not to display the update reception screen on the display unit if the display determining unit determines not to display the update reception screen; and an instruction receiving unit which is configured to receive the update instruction through the update reception screen. an operation unit configured to receive an image read request from a user for causing the image data generating apparatus to generate image data representing a document using the image sensor, a setting acquiring unit which is configured to acquire a setting value, for a document scan based on the image read request, for generating the image data representing the document; a display determining unit which is configured, when an image read request has been received from the user through the operation unit, to determine, before the image data generating apparatus generates image data representing the document using the image sensor, whether to display an update reception screen based on the acquired setting value, wherein the update reception screen is for receiving an update instruction of a color conversion profile from a user, and wherein the color conversion profile is for converting color data of a color system depending on the image data generating apparatus into color data of another color system; a display control unit which is configured to display the update reception screen on the display unit if the display determining unit determines to display the update reception screen, and is configured not to display the update reception screen on the display unit if the display determining unit determines not to display the update reception screen; and an instruction receiving unit which is configured to receive the update instruction through the update reception screen.