An image processing apparatus includes a generation unit configured to scan a document and generate an original image, a decoding unit configured to decode a two-dimensional code on the original image generated in the generation unit to obtain original information, and a determination unit configured to determine whether the original information obtained in the decoding unit contains a password. The image processing apparatus also includes a conversion unit configured to convert the original image generated by the generation unit into an electronic file attaching the password if the determination unit determines that the original information contains the password, and convert the original image generated by the generation unit into an electronic file without attaching the password if the determination unit determines that the original information does not contain the password, and a sending unit configured to send the electronic file obtained by the conversion in the conversion unit.