Mainly frees memory used by the document. Also closes a file, if it was not
closed before with ps_close(). You should in any case
close the file with ps_close() before, because
ps_close() not just closes the file but also outputs a
trailor containing PostScript comments like the number of pages in the
document and adding the bookmark hierarchy.
Parameters
- psdoc
Resource identifier of the postscript file
as returned by ps_new().
Return Values
Returns TRUE on success or FALSE on failure.
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