A print data processing apparatus is provided which includes: a generation unit configured to generate image information and attribute information from print data; a conversion unit configured to convert an attribute of a first area included in the attribute information, wherein an attribute of a second area included in the attribute information is not converted; a compression unit configured to compress the image information and the attribute information in which the attribute of the first area has been converted by the conversion unit; an area information generation unit configured to generate area information indicating the first area having the converted attribute; and a transmission unit configured to transmit the image information compressed by the compression unit, the attribute information compressed by the compression unit, and the area information generated by the area information generation unit, to a printing apparatus as transfer data.