Patent ID: 8446615

Claim:
A method for viewing image data on a display unit of a client computer, the image data representing document data to be rendered by a print engine on a print medium according to print specifications, the client computer being arranged for exchanging data with a print server through a network, the print server being arranged for sending print instructions to the print engine, the client computer including a version y of a conversion function for converting document data into raster image data describing a dot arrangement to be rendered by the print engine and a version z of a client viewer application for viewing the image data according to the print specifications, the print server including a version x of the conversion function and a version x of the client viewer application, said method comprising the steps of: replacing the version y of the conversion function by the version x of the conversion function on the client computer, if the version x is more recent than the version y; installing the version x of the client viewer application on the client computer, if the version x is more recent than the version z; installing the version x of the client viewer application on the client computer, if the version x is less recent than the version z; converting the document data into raster image data on the client computer, using the version of the conversion function on the client computer; and displaying image data representing document data to be rendered according to the print specifications, using the version x of the client viewer application.