TODO revision 75584 
1Read PFB files directly.
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3Generate %%DocumentMedia comment.
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5Generate %%For comment.
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7Generate %%Title comment.
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9For efficiency it might be better to have the printer interface have
10support for the t and u commands.
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12Angles in arc command: don't generate more digits after the decimal
13point than are necessary.
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15Possibly generate BoundingBox comment.
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17Per font composite character mechanism (sufficient for fractions).
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19Consider whether we ought to do rounding of graphical objects other
20than lines. What's the point?
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22Error messages should refer to output page number.
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24Search for downloadable fonts using their PostScript names if not
25found in download file.
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27Separate path for searching for downloadable font files.
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29Clip to the BoundingBox when importing documents.
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