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1# $Id$
2
3pkpgcounter : a generic Page Description Language parser
4
5(c) 2003, 2004, 2005, 2006, 2007, 2008 Jerome Alet <alet@librelogiciel.com>
6This program is free software: you can redistribute it and/or modify
7it under the terms of the GNU General Public License as published by
8the Free Software Foundation, either version 3 of the License, or
9(at your option) any later version.
10
11This program is distributed in the hope that it will be useful,
12but WITHOUT ANY WARRANTY; without even the implied warranty of
13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14GNU General Public License for more details.
15
16You should have received a copy of the GNU General Public License
17along with this program.  If not, see <http://www.gnu.org/licenses/>.
18
19=============================================================================
20
21pkpgcounter is a generic Page Description Language parser which can either
22compute the number of pages in a document, or compute the percent of
23ink coverage needed to print each page, in different colorspaces.
24
25pkpgcounter currently recognizes the following document formats :
26
27        - PostScript (both DSC compliant and binary)
28       
29        - PDF
30       
31        - PCL3/4/5
32       
33        - PCLXL (aka PCL6)
34       
35        - DVI
36       
37        - OpenDocument (ISO/IEC DIS 26300)
38       
39        - Microsoft Word (c) (tm) (r) (etc...)
40       
41        - Plain text
42       
43        - TIFF
44       
45        - Several other image formats
46       
47        - ESC/P2
48       
49        - Zenographics ZjStream
50       
51        - Samsung QPDL (aka SPL2)
52       
53        - Samsung SPL1
54       
55        - ESC/PageS03
56       
57        - Brother HBP
58       
59        - Hewlett-Packard Lightweight Imaging Device Interface Language
60       
61        - Structured Fax
62       
63        - Canon BJ/BJC
64       
65        - ASCII PNM (Netpbm)
66       
67The ten latter ones, as well as some TIFF documents, are currently
68only supported in page counting mode.
69
70By default, when launched pkpgcounter prints on its standard output
71a single integer representing the total number of pages in all the
72files which filenames you've passed on the command line.
73
74With no argument, or with a single dash in non-option arguments,
75pkpgcounter reads datas to parse from its standard input in addition
76to other non-options arguments which are treated as filenames
77representing the files to parse.
78
79See pkpgcounter --help for details and examples.
80
81=============================================================================
82
83Installation :
84--------------
85
86  0 - Download pkpgcounter from :
87 
88        http://www.pykota.com/software/pkpgcounter/download
89       
90      and extract it : 
91     
92        $ tar -zxf pkpgcounter-x.yy.tar.gz
93       
94        where x.yy is pkpgcounter' version number.
95       
96  1 - Run the installation script :
97     
98        $ python setup.py install
99       
100      This will usually install the pkpgcounter into /usr/bin and 
101      the library into /usr/lib/python2.?/site-packages/pkpgpdls/
102       
103  2 - Use pkpgcounter :
104 
105      $ pkpgcounter file1.ps file2.pclxl ... <fileN.escp2
106     
107      pkpgcounter will display the total size in pages of all the files
108      passed on the command line.
109     
110      $ pkpgcounter --colorspace bw --resolution 150 file1.ps
111 
112      Will output the percent of black ink needed on each page of
113      the file1.ps file rendered at 150 dpi.
114     
115  3 - That's all !   
116 
117DEPENDENCIES :
118
119  Most of the time, pkpgcounter only depends on the presence of :
120 
121  - The Python Imaging Library (python-imaging)
122 
123  But, depending on the file formats you plan to work with, and on the
124  accounting mode you want to use (pages vs ink), you may need to install
125  some or all of the additional software listed below. Usually, if one is
126  needed then pkpgcounter will complain. So your best bet is probably
127  to NOT INSTALL anything until pkpgcounter asks you to do so on its
128  standard error stream. Here's the list of software which may be needed
129  for some operations with pkpgcounter :
130
131  - GhostScript (gs)
132 
133  - The X Virtual Frame Buffer (xvfb)
134 
135  - The X authority file utility xauth (xbase-clients)
136 
137  - The dvips converter from TeX DVI to PostScript (tetex-bin)
138 
139  - The ImageMagick image manipulation toolkit (imagemagick)
140 
141  - The AbiWord word processor (abiword)
142
143  - The GhostPCL/GhostPDL's pcl6 converter from PCL to PostScript
144       
145=============================================================================
146
147Troubleshooting :
148-----------------
149
150  If pkpgcounter gives incorrect results to you, please make an incorrectly
151  parsed data file available to us on some website, and tell us which
152  driver was used, how many pages are in the file, and any additional
153  information you think is relevant.
154 
155  If pkpgcounter complain about your system lacking the Python Psyco module,
156  please consider installing it to speedup file parsing. However, don't forget
157  that Psyco currently only runs on the 32 bits x86 platform, so no need to
158  install it if you've got another system type.
159 
160=============================================================================
161
162Before pkpgcounter v1.86, the PCL3/4/5 parser was a Python backport of an early
163release of the PCLCount software by Eduardo Gielamo Oliveira and Rodolfo Broco
164Manin, available from :
165
166    http://www.fea.unicamp.br/pclcount/
167   
168Their software is distributed under either the terms of a BSD-like license,   
169or the terms of the GNU General Public License of the Free Software Foundation.
170
171Beginning with pkpgcounter v1.86, the PCL3/4/5 parser was rewritten from
172scratch, and is now much more readable, maintainable, and of course accurate.
173
174The old parser was still available until pkpgcounter v2.18 was published, but
175was definitely removed after that, just before pkpgcounter v3.00 was published.
176   
177pkpgcounter's PCLXL (aka PCL6) parser doesn't originate from PCLCount, but
178was written from scratch, just like all the other parsers included in
179pkpgcounter.
180
181=============================================================================
182
183pkpgcounter's ink coverage algorithm for the CMYK colorspace is a
184direct Python port from the PrintBill project by Daniel Franklin.
185PrintBill is distributed under the terms of the GNU General Public
186License of the Free Software Foundation, version 2 or higher. The
187algorithms used for the other colorspaces are a complete rewrite of
188PrintBill's algorithms using both Python and the Python Imaging
189Library's facilities.
190
191=============================================================================
192
193Please e-mail bugs to : alet@librelogiciel.com (Jerome Alet)
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