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Mathematica => PDF => Illustrator problem solved! (Sort of...)

  • To: mathgroup at smc.vnet.net
  • Subject: [mg90036] Mathematica => PDF => Illustrator problem solved! (Sort of...)
  • From: AES <siegman at stanford.edu>
  • Date: Fri, 27 Jun 2008 06:14:34 -0400 (EDT)
  • Organization: Stanford University

I posted recently about a situation in which a vector graphic was 
created using Mathematica, including the Thickness[] and PointSize[] 
options, and then transferred to a PDF format HD file using either 
Export[] or the Save Selection As... menu command.

In either case when the resulting PDF file was then opened in 
Illustrator, the plot lines that had been slightly thickened using the 
Thickness[] command appeared enormously over-thickened in the 
Illustrator display (these lines could in fact be selected in 
Illustrator and thinned back down to something like the intended 
thickness), although neither the axes nor the frame outlines nor the 
points in the plot appeared to be similarly distorted.

I've since tried creating a PDF file from the selected graphic in the 
Mathematica notebook in two additional ways, one of which seems to work.

The first way was to select only the _figure_ itself, in the cell in 
which it appeared; invoke the Mathematica 6 Print Selection... menu 
command; and direct the resulting printed output to a PDF file using the 
Mac OS X Print to PDF option.

Opening this PDF file in Illustrator revealed a tiny 0.6733" X 0.4541" 
figure located in the upper left corner of the standard 8.5" X 11" 
artboard.  (The original graphic had been created using the option 
ImageSize->7*72.)  Selecting this tiny image and enlarging it by 1000% 
revealed the same grossly over thickened lines in the image.

The second way, which appears to be a more or less successful 
workaround, was to select the _cell_ containing the desired graphic; 
invoke the Mathematica 6 Print Selection...; and direct the printed 
output to another PDF file by again using the Mac OS X Print to PDF 
option.

The image in this case, which again appears located on an 8.5" X 11" 
artboard, now appears entirely undistorted -- except that the Out[123]=  
label also appears in the figure and has to be hand-removed.

I also note that the ratio of the widths given above, viz. 0.6733/5.6111 
is 0.120000, which is suspiciously similar to the 120% reduction factor 
which I believe Mathematica somehow applies to printed images???  Did someone 
(at WRI or Adobe) slip a factor of 10 in their scaling somewhere?


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