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+pstotext reads one or more PostScript or PDF files, and writes to standard
+output a representation of the plain text that would be displayed if the
+PostScript file were printed. As is described in the DETAILS section below,
+this representation is only an approximation. Nevertheless, it is often
+useful for information retrieval (e.g., running grep(1) or building a
+full-text index) or to recover the text from a PostScript file whose source
+you have lost.
+
+pstotext calls Ghostscript, and requires Aladdin Ghostscript version 3.51 or
+newer. Ghostscript must be invokable on the current search path as gs.
+Alternatively, you can use the -gs option to specify the command (pathname
+and options) to run Ghostscript. For example, on Windows you might use -gs
+"c:\gs\gswin32c.exe -Ic:\gs;c:\gs\fonts".
+
+pstotext reads and processes its command line from left to right, ignoring
+the case of options. When it encounters a pathname, it opens the file and
+expects to find a PostScript job or PDF document to process. The option -
+means to read and process a PostScript job from standard input. If no - or
+pathname arguments are encountered, pstotext reads a PostScript job from
+standard input. (PDF documents require random access, hence cannot be read
+from standard input.) You can use the -output option to specify an output file
+(remember to invoke it before the input file); otherwise pstotext writes to
+standard output.
+
+The option -cork is only relevant for PostScript files produced by dvips from
+TeX or LaTeX documents; it tells pstotext to use the Cork encoding (known as T1
+in LaTeX) rather than the old TeX text encoding (known as OT1 in LaTeX).
+Unfortunately files produced by dvips don't distinguish which font encodings
+were used.
+
+The options -landscape and -landscapeOther should be used for documents that
+must be rotated 90 degrees clockwise or counterclockwise, respectively, in
+order to be readable.
+
+The options -debug and -bboxes are mostly of use for the maintainers of
+pstotext. -debug shows Ghostscript output and error messages. -bboxes outputs
+one word per line with bounding box information.
+
+WWW: http://www.research.digital.com/SRC/virtualpaper/manpages/pstotext.1.html