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+.TH sane\-pnm 5 "14 Jul 2008" "@PACKAGEVERSION@" "SANE Scanner Access Now Easy"
+.IX sane\-pnm
+.SH NAME
+sane\-pnm \- SANE PNM image reader pseudo-backend
+.SH DESCRIPTION
+The
+.B sane\-pnm
+library implements a SANE (Scanner Access Now Easy) backend that
+provides access to PNM (Portable aNyMap files, which covers PBM bitmap
+files, PGM grayscale files, and PPM pixmap files).  The purpose of
+this backend is primarily to aid in debugging of SANE frontends.  It
+also serves as an illustrative example of a minimal SANE backend.
+.SH "DEVICE NAMES"
+This backend provides two devices called
+.B 0
+and
+.BR 1.
+.SH CONFIGURATION
+No configuration required.
+.SH FILES
+.TP
+.I @LIBDIR@/libsane\-pnm.a
+The static library implementing this backend.
+.TP
+.I @LIBDIR@/libsane\-pnm.so
+The shared library implementing this backend (present on systems that
+support dynamic loading).
+.SH ENVIRONMENT
+.TP
+.B SANE_DEBUG_PNM
+If the library was compiled with debug support enabled, this
+environment variable controls the debug level for this backend.  E.g.,
+a value of 128 requests all debug output to be printed.  Smaller
+levels reduce verbosity.
+.SH BUGS
+If the pnm backend is installed and saned is used to allow users on remote
+computers to scan on the local machine, pnm files can be read by the remote
+user. This is limited to the files saned can access (usually it's running as
+user "sane"). All pnm files can be read if saned runs as root which isn't
+recommended anyway. The pnm backend is disabled by default. If you want to use
+it, enable it with configure (see configure \-\-help for details). Be sure that
+only trusted users can access the pnm backend over saned.
+.SH AUTHOR
+Andreas Beck, Gordon Matzigkeit, and David Mosberger
+.SH SEE ALSO
+sane(7)