Patent ID: 11947844
Assignee: CANON KABUSHIKI KAISHA
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 5:
6. A display control method of a printing control apparatus designed to instruct an image output apparatus to perform printing based on print data, the image output apparatus being configured to print and output an image and perform spot color printing by using a coloring material of a spot color, the printing control method comprising:
a first obtaining step of obtaining a first preview image resolution for checking a printing layout;
a second obtaining step of obtaining a printing resolution in the image output apparatus;
a preview image comparing step of comparing a first preview image created by using the first preview image resolution and extracting pixels of a spot color printing portion where the spot color printing is carried out with a second preview image created by using the printing resolution and extracting the pixels of the spot color printing portion; and
a preview image displaying step of displaying a spot color preview image for checking the spot color printing portion by using the first preview image resolution obtained in the first obtaining step, wherein
in the preview image displaying step, a region of the spot color printing portion which is present in the second preview image and not present in the first preview image as a result of comparison in the preview image comparing step is displayed with a rectangular dashed line.