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NAME    [Toc]    [Back]

       sane-pnm - SANE PNM image reader pseudo-backend

DESCRIPTION    [Toc]    [Back]

       The  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 primarly to aid in debugging of SANE frontends.
       It also serves as an illustrative example of a minimal SANE backend.

DEVICE NAMES    [Toc]    [Back]

       This backend provides two devices called 0 and 1.

CONFIGURATION    [Toc]    [Back]

       No configuration required.

FILES    [Toc]    [Back]

	      The static library implementing this backend.

	      The shared library implementing this backend (present on systems
	      that support dynamic loading).

ENVIRONMENT    [Toc]    [Back]

	      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.

BUGS    [Toc]    [Back]

       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.

AUTHOR    [Toc]    [Back]

       Andreas Beck, Gordon Matzigkeit, and David Mosberger

SEE ALSO    [Toc]    [Back]


				 22 April 2001			   sane-pnm(5)
[ Back ]
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