A vector art image can be scaled to any size and remain sharp.
However, we recommend you keep within the dimensions suggested under ‘Specifications’ for our downloadable vector art products.
Some of our maps are scaled specifically for A-format print sizes, and we specify the minimum print size, e.g. A4 or A3, at which the smallest labels are guaranteed to be legible when printed.
Maps with a lot of text will be difficult to scale smaller than the recommended size in terms of legibility. However, you can turn off text layers easily in Adobe Illustrator if labels start to crash into each other.
Blowing up larger than about 500% of the initial size of your map file may compromise the accuracy and integrity of coastlines, roads and other details.
We sell a few maps with relief / hillshading layers generated from pixel (raster) art. These have limited zoom capabilities and the relief backdrop will look fuzzy if blown up big, which is why the scaling recommendations on relief maps are lower than on all the other maps.