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CentOS 7.0 - man page for efix (centos section 1)

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EFIX(1) 										  EFIX(1)

NAME
       efix - convert between fax, text, bit-map and gray-scale formats

SYNOPSIS
       efix [ options ] file...

OPTIONS
       Where options are:

       -i f	the  input  image is in format f. Default is to automatically determine the input
		type from its contents.

	  fax	fax ("Group3") 1-D coded image

	  text	text.  Line feeds separate lines, form feeds  cause  page  breaks  and	tabs  are
		expanded assuming tabs every 8 columns.

	  pbm	raw PBM (portable bit map)

	  tiffg3
		TIFF format with Group 3 (fax) compression.

	  tiffraw
		TIFF format with no compression.

       -o f	write the output in format f.  Default is tiffg3.

	  fax	fax ("Group3") 1-D coded image

	  pbm	raw PBM

	  pgm	raw PGM (Portable Gray Map).  Gray-scale values are produced by summing pixels in
		4x4 pixel blocks.  The output file is 1/4 of the size given by -p.  The resulting
		image has 17 discrete values between 0 and 255.

	  pcl	HP-PCL (e.g. HP LaserJet).

	  ps	encapsulated  Postscript  (e.g. Apple Laserwriter).  The file is compressed using
		differential coding vertically and run-length coding horizontally.  There  is  no
		provision  for positioning the image within the page and so the image will appear
		at the lower left corner of the page when printed.

	  tiffg3
		TIFF format with Group 3 (fax) compression.

	  tiffraw
		TIFF format with no compression.

       -n pat	use the printf(3) pattern path to generate the output file name.  Up to three  %d
		escapes  will  be replaced by the page number starting with 1 (e.g. -n order.%03d
		will create file names order.001, order.002, etc.)

       -v lvl	print messages of type in string lvl.  Each lower-case letter in lvl enables  one
		type of message:

		   e - errors
		   w - warnings
		   i - information messages
		   a - program arguments
		   f - file format details

		The default is "ewi".

       -f fnt	use font file fnt for text.  The font file for an WxH font should be a bit map of
		an image of H rows and 256*W columns.  Each successive WxH cell contains the  bit
		map  for  characters  with codes from 0 to 255.  The default is to use a built-in
		8x16 font.

       -s XxY	scale the input by a factor of X horizontally and Y vertically.  Scaling does not
		change	the  size of the output (use -p).  If Y is not specified it is assumed to
		be the same as X.  Any floating point value may be used for X and Y. The  default
		is 1,1.

       -d R,D	displace  the  output  right by R and down by D (opposite if negative). See below
		for units.  Default is 0,0.

       -p WxH	truncate or pad the output to generate an image of width W and	height	H.   This
		does  not  scale the input.  See below for units.  The default is the size of the
		input image if it can be determined or A4 (215x297mm) if it can't.

       -r XxY	assume an output device resolution of X by Y dots per inch.  If Y is  not  speci-
		fied  it  is assumed to be the same as X.  The default is the input resolution if
		it can be determined or the fax resolution of 204.1x195.6 dpi if it can't.

       -R XxY	assume an input device resolution of X by Y dots per inch.  If Y is not specified
		it is assumed to be the same as X.  The default is the input resolution if it can
		be determined or the fax resolution of 204.1x195.6 dpi if it can't.

       -l n	place n lines per page during text input. Default is 66.

       -O f	overlay (logical OR) the image from file f into the output.  Use "-" for standard
		input (-O-).  Default is no overlay file.

       -M	ignore all other options and copy the standard input to the standard output while
		applying base64 (MIME) encoding as specified by RFC 1521.

FILES
       If no -n options are given, output is written to the standard output.

UNITS
       The units of the W, H, R, and D values above are in inches by default.  Any floating point
       value  may be used.  Units of inches, centimetres, millimetres or points (72 per inch) can
       be used instead by appending one of the strings `in', `cm', `mm', or `pt' to the  argument
       (e.g. -d2,4cm).

CUT AND PASTE
       The  -d	and  -p options allow efix to cut out images from received faxes for use in other
       faxes or documents.  The -d option specifies the top left portion of the desired image and
       the -p option gives the size of the cut image.  For example, the command
		   efix -d-5,-8 -p2,1 sample.001 >sig.001
       would cut out part of the input with its top left corner 5 inches from the left edge and 8
       inches from top of the input image.  The output image would be 2 inches wide  and  1  inch
       high.

       The -O option allows efix to superimpose two or more images.  The overlay image must be in
       fax format and cannot be scaled, truncated or shifted. However, multiple efix commands may
       be used to transform images before combining them.  For example, the commands
		   efix -d4,8 signature >sig.fax
		   efix -O sig.fax letterhead >letterhead.fax
		   efix -O letterhead.fax letter.002 >letter.002.new
       will  shift  the  image in the file signature down 8 inches and right 4 inches and combine
       (overlay) it with the images in the files letterhead and letter.002.

REFERENCES
       Gunter Born, "The File Formats Handbook", International Thompson Computer Press, 1995.

COPYRIGHT
       efix is copyright 1994 -- 1999 by Ed Casas.  It may be used, copied and modified under the
       terms of the GNU Public License.

DISCLAIMER
       Although  efix  has  been tested it may have errors that will prevent it from working cor-
       rectly on your system.  Some of these errors may cause serious problems including loss  of
       data.

SEE ALSO
       efax(1), ghostscript(1), pbm(5), pgm(5).

BUGS
       Only reads two types of TIFF compression formats.

       Does not write multi-page TIFF files (a feature).

3rd Berkeley Distribution		  February 1999 				  EFIX(1)
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