When colorized this is equivalent to 51 Mb in RGB format or 68 Mb in CMYK format. The full collection also includes a Van de Grinten projection featuring the Americas in the center of the map. The Gall projection is the most suitable for wrapping on a sphere. Beyond this point the image may start to pixelate, however, this can be reduced somewhat by resampling or interpolating the image. This process takes each pixel and redivides it into smaller pixels and averages the color value with adjoining pixels to provide a smooth image gradient.
Some customers expand the images to fit on exhibition walls or large posters.
As with any photographic image, eventually the image grain will be visible. Rivers are presented in many ways - on the base relief maps, large rivers appear as part of the ocean mask where the river width exceeds one half the pixel size. With versions 2 and 2.5, a full hydrography system of rivers are available either as a Photoshop path on the base relief JPEG map, as a TIFF mask or alternatively as a Illustrator EPS or FreeHand file layers. River names can be selected as a separate layer or path and may be edited. City names are located in a separate layer and are editable.