Method and computer program product for verifying a computer renderable document for on-screen appearance

A computer program product for verifying a computer renderable document for on-screen appearance when displayed by an application adapted to apply any one of a plurality of predetermined window resolutions responsive to an input signal, said computer program product comprising computer executable instructions for performing a method, said method comprising the steps of:

• identifying the computer renderable document to be verified for the application;
• providing an input signal to the application to select a window resolution of the plurality of predetermined window resolutions;
• rendering an image of the document at the selected window resolution on a screen of a reference display monitor of a reference computing platform, wherein the rendered image at the selected window resolution on the screen of the reference display monitor emulates a rendered on-screen appearance of the image at the selected window resolution on a screen of another display monitor of another computing platform, wherein the screen of the another display monitor has a smaller window size than does the screen of the reference display monitor, wherein the reference display monitor comprises a maximum window resolution greater than the selected window resolution, and wherein said rendering is performed by executing the application on the reference computing platform;
• determining if the emulated on-screen appearance of the image of the screen of the another display monitor of the another computing platform meets predetermined acceptance criteria at the selected window resolution;
• and
• repeating, for each of the other window resolutions of the plurality of predetermined window resolutions, the steps of providing an input signal, rendering an image of the document, and determining if the on-screen appearance of the computer renderable document meets the predetermined acceptance criteria.