A data processing apparatus selects a processing scheme for target data from among candidates by using a degree of compression of the target data as an index, and performs data processing on the target data by using the selected processing scheme. The candidates include a processing scheme in which data which has been compressed is subjected to the data processing, and a processing scheme in which data is expanded and then subjected to the data processing.

Image processing apparatuses, methods and storage mediums for use with same are provided herein. In at least one embodiment, an image processing apparatus makes a setting to use a storing unit as a decompression buffer and a compression buffer based on drawing data including compressed image data, and makes a setting not to use the storing unit as a decompression buffer but to use the storing unit as a compression buffer based on drawing data not including compressed image data.

A printer includes a receiving unit configured to receive data for drawing a character at a predetermined drawing position, and a drawing unit configured to, based on the data for drawing the character, draw the character multiple times by varying a drawing position of the character each time. The drawing performed multiple times includes at least drawing at the predetermined drawing position, drawing at a drawing position shifted from the predetermined drawing position only in a horizontal direction, and drawing at a drawing position shifted from the predetermined drawing position only in a vertical direction.

An image processing apparatus which prevents a printing process from taking long. The image processing apparatus is connected to a printing apparatus having a storage unit and transfers image data to the printing apparatus. A size of predetermined image data when a speed at which the predetermined image data is stored in the storage unit and a speed at which the predetermined image data stored in the storage unit is printed are the same is obtained as a threshold size. A size of the image data stored in the storage unit in a compressed form is estimated. A compression method for use in compressing the transferred image data is selected from a plurality of compression methods based on the threshold size and the estimated size of the image data. The image processing apparatus notifies the printing apparatus of the determined compression method.