TODO revision 104862 
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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9Angles in arc command: don't generate more digits after the decimal
10point than are necessary.
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12Possibly generate BoundingBox comment.
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14Per font composite character mechanism (sufficient for fractions).
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16Consider whether we ought to do rounding of graphical objects other
17than lines. What's the point?
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19Error messages should refer to output page number.
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21Search for downloadable fonts using their PostScript names if not
22found in download file.
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24Separate path for searching for downloadable font files.
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26Clip to the BoundingBox when importing documents.
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