src/tiff/man/fax2ps.1

.\"	$Id: fax2ps.1,v 1.3 2005/11/02 11:07:19 dron Exp $
.\"
.\" Copyright (c) 1991-1997 Sam Leffler
.\" Copyright (c) 1991-1997 Silicon Graphics, Inc.
.\"
.\" Permission to use, copy, modify, distribute, and sell this software and
.\" its documentation for any purpose is hereby granted without fee, provided
.\" that (i) the above copyright notices and this permission notice appear in
.\" all copies of the software and related documentation, and (ii) the names of
.\" Sam Leffler and Silicon Graphics may not be used in any advertising or
.\" publicity relating to the software without the specific, prior written
.\" permission of Sam Leffler and Silicon Graphics.
.\"
.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
.\"
.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
.\" OF THIS SOFTWARE.
.\"
.if n .po 0
.TH FAX2PS 1 "November 2, 2005" "libtiff"
.SH NAME
fax2ps \- convert a
.SM TIFF
facsimile to compressed \*(Ps\(tm
.SH SYNOPSIS
.B fax2ps
[
.I options
] [
.IR file ...
]
.SH DESCRIPTION
.I fax2ps
reads one or more
.SM TIFF
facsimile image files and prints a compressed form of
\*(Ps on the standard output that is suitable for printing.
.PP
By default, each page is scaled to reflect the
image dimensions and resolutions stored in the file.
The
.B \-x
and
.B \-y
options can be used to specify the horizontal and vertical
image resolutions (lines/inch), respectively.
If the
.B \-S
option is specified, each page is scaled to fill an output page.
The default output page is 8.5 by 11 inches.
Alternate page dimensions can be specified in inches with the
.B \-W
and
.B \-H
options.
.PP
By default
.I fax2ps
generates \*(Ps for all pages in the file.
The
.B \-p
option can be used to select one or more pages from
a multi-page document.
.PP
.I fax2ps
generates a compressed form of \*(Ps that is
optimized for sending pages of text to a \*(Ps
printer attached to a host through a low-speed link (such
as a serial line).
Each output page is filled with white and then only
the black areas are drawn.
The \*(Ps specification of the black drawing operations
is optimized by using a special font that encodes the
move-draw operations required to fill
the black regions on the page.
This compression scheme typically results in a substantially
reduced \*(Ps description, relative to the straightforward
imaging of the page with a \*(Ps
.I image
operator.
This algorithm can, however, be ineffective
for continuous-tone and white-on-black images.
For these images, it sometimes is more efficient to send
the raster bitmap image directly; see
.IR tiff2ps (1).
.SH OPTIONS
.TP 10
.BI \-p " number"
Print only the indicated page.
Multiple pages may be printed by specifying
this option more than once.
.TP 10
.BI \-x " resolution"
Use
.I resolution
as the horizontal resolution, in dots/inch, of the image data.
By default this value is taken from the file.
.TP 10
.BI \-y " resolution"
Use
.I resolution
as the vertical resolution, in lines/inch, of the image data.
By default this value is taken from the file.
.TP 10
.B \-S
Scale each page of image data to fill the output page dimensions.
By default images are presented according to the dimension
information recorded in the
.SM TIFF
file.
.TP 10
.BI \-W " width"
Use
.I width
as the width, in inches, of the output page.
.TP 10
.BI \-H " height"
Use
.I height
as the height, in inches, of the output page.
.SH DIAGNOSTICS
Some messages about malformed
.SM TIFF
images come from the
.SM TIFF
library.
.PP
Various messages about badly formatted facsimile images
may be generated due to transmission errors in received
facsimile.
.I fax2ps
attempts to recover from such data errors by resynchronizing
decoding at the end of the current scanline.
This can result in long horizontal black lines in the resultant
\*(Ps image.
.SH NOTES
If the destination printer supports \*(Ps Level II then
it is always faster to just send the encoded bitmap generated
by the
.BR tiff2ps (1)
program.
.SH BUGS
.I fax2ps
should probably figure out when it is doing a poor
job of compressing the output and just generate
\*(Ps to image the bitmap raster instead.
.SH "SEE ALSO"
.BR tiff2ps (1),
.BR libtiff (3)
.PP
Libtiff library home page:
.BR http://www.remotesensing.org/libtiff/
Commit	Line	Data
	1	.\" $Id: fax2ps.1,v 1.3 2005/11/02 11:07:19 dron Exp $
	2	.\"
	3	.\" Copyright (c) 1991-1997 Sam Leffler
	4	.\" Copyright (c) 1991-1997 Silicon Graphics, Inc.
	5	.\"
	6	.\" Permission to use, copy, modify, distribute, and sell this software and
	7	.\" its documentation for any purpose is hereby granted without fee, provided
	8	.\" that (i) the above copyright notices and this permission notice appear in
	9	.\" all copies of the software and related documentation, and (ii) the names of
	10	.\" Sam Leffler and Silicon Graphics may not be used in any advertising or
	11	.\" publicity relating to the software without the specific, prior written
	12	.\" permission of Sam Leffler and Silicon Graphics.
	13	.\"
	14	.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
	15	.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
	16	.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
	17	.\"
	18	.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
	19	.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
	20	.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
	21	.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
	22	.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
	23	.\" OF THIS SOFTWARE.
	24	.\"
	25	.if n .po 0
	26	.TH FAX2PS 1 "November 2, 2005" "libtiff"
	27	.SH NAME
	28	fax2ps \- convert a
	29	.SM TIFF
	30	facsimile to compressed \*(Ps\(tm
	31	.SH SYNOPSIS
	32	.B fax2ps
	33	[
	34	.I options
	35	] [
	36	.IR file ...
	37	]
	38	.SH DESCRIPTION
	39	.I fax2ps
	40	reads one or more
	41	.SM TIFF
	42	facsimile image files and prints a compressed form of
	43	\*(Ps on the standard output that is suitable for printing.
	44	.PP
	45	By default, each page is scaled to reflect the
	46	image dimensions and resolutions stored in the file.
	47	The
	48	.B \-x
	49	and
	50	.B \-y
	51	options can be used to specify the horizontal and vertical
	52	image resolutions (lines/inch), respectively.
	53	If the
	54	.B \-S
	55	option is specified, each page is scaled to fill an output page.
	56	The default output page is 8.5 by 11 inches.
	57	Alternate page dimensions can be specified in inches with the
	58	.B \-W
	59	and
	60	.B \-H
	61	options.
	62	.PP
	63	By default
	64	.I fax2ps
	65	generates \*(Ps for all pages in the file.
	66	The
	67	.B \-p
	68	option can be used to select one or more pages from
	69	a multi-page document.
	70	.PP
	71	.I fax2ps
	72	generates a compressed form of \*(Ps that is
	73	optimized for sending pages of text to a \*(Ps
	74	printer attached to a host through a low-speed link (such
	75	as a serial line).
	76	Each output page is filled with white and then only
	77	the black areas are drawn.
	78	The \*(Ps specification of the black drawing operations
	79	is optimized by using a special font that encodes the
	80	move-draw operations required to fill
	81	the black regions on the page.
	82	This compression scheme typically results in a substantially
	83	reduced \*(Ps description, relative to the straightforward
	84	imaging of the page with a \*(Ps
	85	.I image
	86	operator.
	87	This algorithm can, however, be ineffective
	88	for continuous-tone and white-on-black images.
	89	For these images, it sometimes is more efficient to send
	90	the raster bitmap image directly; see
	91	.IR tiff2ps (1).
	92	.SH OPTIONS
	93	.TP 10
	94	.BI \-p " number"
	95	Print only the indicated page.
	96	Multiple pages may be printed by specifying
	97	this option more than once.
	98	.TP 10
	99	.BI \-x " resolution"
	100	Use
	101	.I resolution
	102	as the horizontal resolution, in dots/inch, of the image data.
	103	By default this value is taken from the file.
	104	.TP 10
	105	.BI \-y " resolution"
	106	Use
	107	.I resolution
	108	as the vertical resolution, in lines/inch, of the image data.
	109	By default this value is taken from the file.
	110	.TP 10
	111	.B \-S
	112	Scale each page of image data to fill the output page dimensions.
	113	By default images are presented according to the dimension
	114	information recorded in the
	115	.SM TIFF
	116	file.
	117	.TP 10
	118	.BI \-W " width"
	119	Use
	120	.I width
	121	as the width, in inches, of the output page.
	122	.TP 10
	123	.BI \-H " height"
	124	Use
	125	.I height
	126	as the height, in inches, of the output page.
	127	.SH DIAGNOSTICS
	128	Some messages about malformed
	129	.SM TIFF
	130	images come from the
	131	.SM TIFF
	132	library.
	133	.PP
	134	Various messages about badly formatted facsimile images
	135	may be generated due to transmission errors in received
	136	facsimile.
	137	.I fax2ps
	138	attempts to recover from such data errors by resynchronizing
	139	decoding at the end of the current scanline.
	140	This can result in long horizontal black lines in the resultant
	141	\*(Ps image.
	142	.SH NOTES
	143	If the destination printer supports \*(Ps Level II then
	144	it is always faster to just send the encoded bitmap generated
	145	by the
	146	.BR tiff2ps (1)
	147	program.
	148	.SH BUGS
	149	.I fax2ps
	150	should probably figure out when it is doing a poor
	151	job of compressing the output and just generate
	152	\*(Ps to image the bitmap raster instead.
	153	.SH "SEE ALSO"
	154	.BR tiff2ps (1),
	155	.BR libtiff (3)
	156	.PP
	157	Libtiff library home page:
	158	.BR http://www.remotesensing.org/libtiff/