Free Knowledge Resources


Linux Manual Pages


Free Software * Books

Source Code

Free Media

Linux

g3topbm(1)


NAME

   g3topbm - convert a Group 3 fax file into a portable bitmap

SYNOPSIS

   g3topbm [-kludge] [-reversebits] [-stretch] [g3file]

DESCRIPTION

   Reads  a  Group  3  fax  file  as input.  Produces a portable bitmap as
   output.

OPTIONS

   -kludge
          Tells g3topbm to  ignore  the  first  few  lines  of  the  file;
          sometimes fax files have some junk at the beginning.

   -reversebits
          Tells g3topbm to interpret bits least-significant first, instead
          of the default  most-significant  first.   Apparently  some  fax
          modems do it one way and others do it the other way.  If you get
          a whole bunch of "bad code word" messages, try using this flag.

   -stretch
          Tells g3topbm to stretch the  image  vertically  by  duplicating
          each row.  This is for the low-quality transmission mode.

   All flags can be abbreviated to their shortest unique prefix.

REFERENCES

   The standard for Group 3 fax is defined in CCITT Recommendation T.4.

BUGS

   Probably.

SEE ALSO

   pbmtog3(1), pbm(5)

AUTHOR

   Copyright (C) 1989 by Paul Haeberli <paul@manray.sgi.com>.

                            02 October 1989                     g3topbm(1)



Opportunity


Personal Opportunity - Free software gives you access to billions of dollars of software at no cost. Use this software for your business, personal use or to develop a profitable skill. Access to source code provides access to a level of capabilities/information that companies protect though copyrights. Open source is a core component of the Internet and it is available to you. Leverage the billions of dollars in resources and capabilities to build a career, establish a business or change the world. The potential is endless for those who understand the opportunity.

Business Opportunity - Goldman Sachs, IBM and countless large corporations are leveraging open source to reduce costs, develop products and increase their bottom lines. Learn what these companies know about open source and how open source can give you the advantage.



Free Software


Free Software provides computer programs and capabilities at no cost but more importantly, it provides the freedom to run, edit, contribute to, and share the software. The importance of free software is a matter of access, not price. Software at no cost is a benefit but ownership rights to the software and source code is far more significant.

Free Office Software - The Libre Office suite provides top desktop productivity tools for free. This includes, a word processor, spreadsheet, presentation engine, drawing and flowcharting, database and math applications. Libre Office is available for Linux or Windows.



Free Books


The Free Books Library is a collection of thousands of the most popular public domain books in an online readable format. The collection includes great classical literature and more recent works where the U.S. copyright has expired. These books are yours to read and use without restrictions.

Source Code - Want to change a program or know how it works? Open Source provides the source code for its programs so that anyone can use, modify or learn how to write those programs themselves. Visit the GNU source code repositories to download the source.



Education


Study at Harvard, Stanford or MIT - Open edX provides free online courses from Harvard, MIT, Columbia, UC Berkeley and other top Universities. Hundreds of courses for almost all major subjects and course levels. Open edx also offers some paid courses and selected certifications.

Linux Manual Pages - A man or manual page is a form of software documentation found on Linux/Unix operating systems. Topics covered include computer programs (including library and system calls), formal standards and conventions, and even abstract concepts.


birds banner