To provide a sticky-note printing system and a sticky-note printer which can print images in reading posture of images to be printed on the sticky-note according to an adhesion form of the sticky-note.

The sticky-note printing system comprises a sticky-note printer which performs printing on the top sticky-note of a sticky-note bundle prepared by releasably adhering one of the ends of the sticky-notes and laminating the sticky-notes, and an image creating device to create image data to be printed on the sticky-note. In the system, the sticky-note is printed by the sticky-note printer based on the image data created by the image creating device. The image creating device comprises an image creating means to create image data. The sticky-note printer comprises an image rotating means to rotate the created image data by a predetermined angle and a printing means to perform printing based on the image data rotated by the image rotating means.