An image processing apparatus includes an imaging unit configured to capture an image of a printed matter in which additional information has been embedded by an electronic watermark and an extraction unit configured to perform an extraction process of extracting the additional information from captured image information obtained by the imaging unit. The image processing apparatus further includes a notification unit configured to notify information indicating that the imaging unit is in a stage of preparation for the extraction process in a case where a positional relationship between the printed matter and the imaging unit satisfies some of conditions for starting the extraction process.