Change PageSize option from Mac PDE?

[Aaron Sher]

After thinking about this a bit more, I'm even more confused. You seem to be saying that the scaling factor is applied after the application does its rendering. That says to me that it has to be in one of the predefined filters like pdftoraster - is that right? If so, that isn't going to help us, because our filter (which is based on the Xenographics stuff) takes pdf as input and does its own rasterization very far down the line, partly in the printer firmware.

Second, what if the application is printing raster, like printing an image from Photoshop? The filter chain will get a PDF that wraps a raster image, and scaling that would introduce artifacts, wouldn't it? It seems like this would only work reliably if the app is generating vector data, which is why I was looking for a way to increase the imageable area in the first place.

As an alternative, is it valid to pass negative numbers to ImageableArea, effectively defining negative margins? When I tried this, I got corrupted output, but I don't know whether it's the app (Preview) getting confused, or the filter.

Thanks,
   Aaron