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As all Illustrator users know, there is a hard limit on the size you can export a PNG file. I'm curious if anyone knows the maximum limit on this, and if it differs depending on the DPI of the exported PNG file.
For my immediate needs I am interested in a 300 DPI export, but curious what the dimension limit is for 72, 150 if it's dependent on the DPI.
A fellow Illustrator artist tracked down the answer by doing it manually and we've discovered that at least in CS5, the max limit is basically a pixel dimension limit.
When exporting a 300 DPI .png file, the maximum artboard dimensions are 1965pt x 1965pt. To find the artboard limits for other DPI settings, you'd need to do the algebra to figure out the numbers. It seems the maximum pixel dimensions are 8190px x 8190px.
This equates to a 27.3" x 27.3" raster image at 300 DPI.
The limit is somewhat dependent upon your system - RAM and resources - and the artwork.
It is pretty much impossible to give exact limits since the rasterization depends entirely upon the artwork. A full artboard of gradients will take far more to rasterize than a blank artboard with one flat element on it.
