Postscript question

[Tom Allison <tallison@tacocat.net>]

I have two postscript files that I created.
The first, tabook.ps, was created from xpdf.
The second, 025.filtered was created by pdq's filter process of tabook.ps

Note the first line of each file.
Is there anything wrong with respect to PostScript?

==> .printjobs/025.filtered <==
%!
%% %%
%!PS-Adobe-3.0
%%Creator: xpdf/pdftops 1.00
%%LanguageLevel: 2
%%DocumentSuppliedResources: (atend)
%%DocumentMedia: plain 612 792 0 () ()
%%Pages: 17
%%EndComments
%%BeginProlog
tallison@penguin:~$
tallison@penguin:~$ head tabook.ps
%!PS-Adobe-3.0
%%Creator: xpdf/pdftops 1.00
%%LanguageLevel: 2
%%DocumentSuppliedResources: (atend)
%%DocumentMedia: plain 612 792 0 () ()
%%Pages: 17
%%EndComments
%%BeginDefaults
%%PageMedia: plain
%%EndDefaults


tallison@penguin:~$ diff .printjobs/025.filtered tabook.ps
1,2d0
< %!
< %% %%
10d7
< %%BeginProlog
259,263d255
< [{
< %%BeginFeature: *PageSize Letter
< <</PageSize[612 792]/ImagingBBox null>>setpagedevice
< %%EndFeature
< } stopped cleartomark

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