[cairo] Postscript and odd paper sizes...

[Rick Brownrigg]

Some applications do not correctly recognize the page size in cairo- 
generated postscript when the page is something other than 8.5"x11";   
in particular, the "ps2pdf" utility, and MacOSX's "preview". This is  
true regardless of whether the size is specified via the call to  
cairo_ps_surface_create(), or a subsequent call to  
cairo_ps_surface_set_size().

Inspecting the postscript output reveals that the DSC comment "% 
%BoundingBox" is properly set to reflect the page size.  However, a  
colleague tells me that the correct way to specify this is via:

%%BeginSetup
....
<</PageSize [widthPts heightPts]>> setpagedevice
...
%%EndSetup

Indeed, when I manually add this to the cairo-output, the  
aforementioned apps seem to work as expected. Section 6.2 of the  
postscript 3 manual seems to indicate this is the correct way to  
specify page size (http://www.adobe.com/devnet/postscript/pdfs/ 
PLRM.pdf).

FWIW...
Rick Brownrigg


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