7. Legal and Version Information
Zint, libzint and Zint Barcode Studio are Copyright © 2020 Robin Stuart. All
historical versions are distributed under the GNU General Public License version
3 or later. Version 2.5 is released under a dual license: the encoding library is released
under the BSD license whereas the GUI, Zint Barcode Studio, is released under the
GNU General Public License version 3 or later.
Telepen is a trademark of SB Electronic Systems Ltd.
QR Code is a registered trademark of Denso Wave Incorporated.
Microsoft, Windows and the Windows logo are either registered trademarks or
trademarks of Microsoft Corporation in the United States and/or other
Linux is the registered trademark of Linus Torvalds in the U.S. and other
Zint.org.uk website design and hosting provided by Robert Elliott.
7.2 Patent Issues
All of the code in Zint is developed using information in the public domain,
usually freely available on the Internet. Some of the techniques used may be
subject to patents and other intellectual property legislation. It is my belief
that any patents involved in the technology underlying symbologies utilised by
Zint are 'unadopted', that is the holder does not object to their methods being
Any methods patented or owned by third parties or trademarks or registered
trademarks used within Zint or in this document are and remain the property of
their respective owners and do not indicate endorsement or affiliation with
those owners, companies or organisations.
7.3 Version Information
v0.1 - (as Zebar) Draws UPC-A. UPC-E, EAN-8, EAN-13, Interlaced 2 of 5,
Codabar, Code 39, Extended Code 39 and Code 93 barcodes and Add-on codes EAN-2
and EAN-5 without parity. 13/11/2006
v0.2 - Added Code 128 (which is now the default), Code 11, Code 2 of 5,
Add-on codes EAN-2 and EAN-5 parity and MSI/Plessey without check digit.
v0.3 - Added MSI/Plessey Mod 10 check and 2 x Mod 10 check options, Telepen
ASCII and Telepen numeric, Postnet, RM4SCC. Code has been tidied up quite a bit.
Bind option added. 30/12/2006
v0.4 - Added barcode stacking (now stacks up to 16 barcodes) and Code16k
v0.5 - Added Australia Post 4-State Barcodes and Pharmacode (1 and 2 track).
4-state codes now draw with correct height/width ratio. 28/2/2007
v0.6 - Added Plessey and some derivative codes (EAN-128, Code 128 subset B,
Auspost Reply, Auspost Routing, Auspost Redirect, ITF-14). Tidied up code again:
separated symbologies into more files and put all lookup tables into arrays
(much reducing the amount of code, especially for Code 39e and Code 93). Errors
now output to stderr. Added proper input verification. Distribution now packs
with HTML pages instead of separate README. Outputs to PNG. Outputs colour. User
variable whitespace and border width. Box option. Fixed EAN add-on bug. Added
whitespace and height options. Project name changed to Zint to avoid conflict
with extant trade name. Added escape character input. 1/4/2007
v1.0 - Corrected problem with escape character codes. Supports PDF417. This
completes the list of features I originally wanted (plus a few more), hence skip
to version 1.0. 20/4/2007
v1.1 - Added more derivatives (Code 2 of 5 Matrix, IATA and Data Logic,
Truncated PDF417, Deutsche Post Leitcode and Identcode, Pharmazentralnummer,
Planet) and Flattermarken. Tidied up 2 of 5 code. 26/4/2007
v1.2 - Supports Data Matrix ECC200 (by absorption of IEC16022 code by Stefan Schmidt
et al). Added reverse colours, FIM, MSI/Plessey Modulo 11 and Modulo 11/10.
Corrected Code 16k check digit calculation. 28/5/2007
v1.3 - Supports USPS OneCode and LOGMARS. Brought all usage information into
one User Manual document. 13/6/2007
v1.4 - Added NVE-18 support. Corrected some problems with compilation and
input verification. Command line option handling now uses getopt(), and all the
switches have changed. Added –font option. 20/6/2007
v1.5 - Pulled everything together to make an API. Corrected errors with
EAN-13, PDF417 and LOGMARS. Added EPS output. Added QR Code support using
libqrencode. Corrected ISBN verification error. Re-compiled documentation in
HTML form. Put in place proper error handling routines. --font option removed.
Encoding is now done with a restructured zint_symbol structure. Added make
install option and optional QR Code support to Makefile. Corrected minor problem
with 4-State Codes. Restructured code into fewer source code files. Added
MicroPDF417 support. 12/8/2007
v1.5.1 - Added formatting code to EPS output of EAN and UPC symbols according
to EN 797:1996. Checked against and, where appropriate, altered or corrected to
comply with ISO 16388 and ISO 15417 including Latin-1 support. Altered default
image settings, added automatic ITF border. Corrected error with USPS OneCode.
Tidied up Code 39 quite a bit, added Mod 43 options. 3/9/2007
v1.5.2 - Added extended ASCII support to Code 16k. Corrected Code 128 error.
Added Maxicode support by integrating code by John Lien. 26/9/2007
v1.5.3 - Made huge corrections to Maxicode support by removing and re-writing
much of John's code. Maxicode now supports extended ASCII and modes 4, 5 and 6.
v1.5.4 - Added GS1 DataBar (Reduced Space Symbology) support. 26/11/2007
v1.5.5 - Added composite symbology support. Corrected errors with GS1-128
PDF417/MicroPDF417 byte processing. Transferred licence to GPL version 3.
v1.6 - Data Matrix ECC200, Maxicode and Australia Post now use common Reed-Solomon
functions – this also fixes a bug in Maxicode error correction and replaces the
last of the Lien code. Added PNG output for Maxicode symbols. Removed some
useless code. Updated QR support for libqrencode v2.0.0. 22/4/2008
v1.6.1 - Major restructuring of PNG generating code: Now draws UPCA and EAN
symbols properly and puts human readable text into the image. Also corrected
some nasty 'never ending loop' bugs in Code 128 and check digit bugs in PostNet
and Planet. 8/7/2008
v1.6.2 - Added KIX Code support and PNG image rotation. Corrected a bug
affecting extended ASCII support in Code 128 and Code 16k. 28/7/2008.
v2.0 beta - Added support for Aztec Code, Codablock-F, Code 32, EAN-14 and
DAFT Code. Rearranged symbology numbers to match Tbarcode v8. Corrected a never
ending loop bug in EAN-128. 29/9/2008
v2.0 beta r2 - Many corrections and bugfixes. (Code 11, Code 128, EAN-128,
Aztec Code, Codablock-F, Code 16k, Postnet, PLANET, NVE-18, PZN, Data Matrix ECC200,
Maxicode and QR Code)
v2.0 - Made corrections to Aztec Code and tested output with bcTester. Added
Aztec Runes, Micro QR Code and Data Matrix ECC200 ECC 000-140. Updated e-mail
v2.1 - Reinstated Korea Post barcodes, harmonised bind and box options, moved
Unicode handling into backend and added input_mode option, added size options to
Data Matrix ECC200, added NULL character handling for Codablock-F, Code 128, Code 16k,
Extended Code 39, Code 93, Telepen, Maxicode, Data Matrix ECC200 ECC 200, PDF417 and
MicroPDF417. Added GS1 support for Code 16k, Codablock-F and Aztec Code. Added
scale and direct to stdout options. Rebult Data Matrix ECC200 ECC 200 encoding
algorithms to support NULL encoding and GS1 data encoding. 31/1/2009
v2.1.1 - Minor Data Matrix ECC200 bugfix and added HIBC options. 10/2/2009
v2.1.2 - Added SVG output option. Improved Japanese character support
including Unicode > Shift-JIS capability. Bugfixes for Data Matrix ECC200 (missing
characters at end of string) and Codablock-F (K1/K2 check digit and row
indicators above row 6). 1/3/2009
v2.1.3 - Many improvements to the QZint GUI which is now renamed "Zint
Barcode Studio 0.2". Added Japanese Postal Barcode, Code 49 and Channel Code and
made corrections to Data Matrix ECC200 (Binary mode data compression terminates too
soon), Aztec Code (Bug when automatically resizing after removing "all 0" and
"all 1" codewords) and Code 128 (Extended ASCII characters become corrupt).
v2.1.4 - Many stability improvements including removal of buffer overruns in
Code 39, LOGMARS, PZN, Aztec Code and Composite CC-A. Addition of files for
compiling on MS Windows platform - tested successfully on XP and Vista.
v2.2 - Added Code One and GS1 support in Code 49. Changed GUI binary name to
zint-qt and brought GUI up to version 1.0. Made some minor bugfixes to Code 39,
ITF-14, Aztec Code, Code 128 and Code 16K. Added 'rest' button to GUI. Included
.spec file from Radist. 18/7/2009
v2.2.1 - Data encoding bugfixes for Aztec Code, Data Matrix ECC200, USPS One Code
and PDF417. Symbol plotting bugfixes for MicroPDF417 and 2D components of
composite symbols. Text formatting bugfix for Qt renderer and a couple of
compiler fixes for MSVC PNG image output. 6/8/2009
v2.2.2 - A beta release previewing the new API structure. Better NULL
character support with "nullchar" value removed. Added loading from file and
sequence dialogs in Barcode Studio. 29/9/2009
v2.3 - Fixed problems with Micro QR Code and rebuilt QR Code support removing
dependence on libqrencode. Improved Kanji character support for QR Code and
Micro QR Code which now auto-detects and automatically converts to Shift-JIS.
Added Grid Matrix symbology with Kanji character support and automatic
conversion to GB 2312. Removed no_qr compile option. Advanced Barcode Studio
version number to match library version number. 23/11/2009
v2.3.1 - Removed Codablock-F. Redesigned scale function so that human
readable text and Maxicode symbols can be scaled consistently. Corrected
encoding bugs with Code 128/Code 16k and Data Matrix ECC200 ECC 050. Added --notext
option to CLI. 7/3/2010
v2.3.2 - Corrected many bugs in GS1 DataBar Extended thanks to the careful
study of the code by Pablo Orduña at the PIRAmIDE project. Similarly corrected
some bugs in Maxicode thanks to Monica Swanson at Source Technologies. Also
minor bugfixes for ISBN and Aztec Code, and added some small features like a
--square option in the CLI. 29/5/2010
v2.4 - Built extensions to the API for integrating with glabels with thanks
to Sam Lown and Jim Evins. Added code optimisation and input from stdin thanks
to Ismael Luceno. Reinstated escape character input. Simplification of Barcode
v2.4.1 & 2.4.2 – A whole host of bugfixes including correction of ECC
routines for Code-1 and addition of batch processing at the command line.
V2.5 – Support for DotCode and Han Xin code. ECI code processing. Output to BMP,
GIF and PCX. Added bold text option. Many minor bugfixes and improvements.
(Due for release November 2016).
V2.6 - Output to EMF and TIFF. Update frontend to QT5. Copy to clipboard on KDE and Windows.
v2.6.1 - Various bugfixes to backend, including improved Aztec code processing.
Many improvements to GUI including resizable screens and more output while
batch processing, more consistent use of dialogues.
v2.6.2 - Further bugfixes in Aztec and DotCode. Expand escape sequence support
to API and GUI. Handle UTF BOM. Bugfix raster images of Maxicode.
v2.6.3 - New symbology Royal Mail 4-state Mailmark. Added North America VIN
verification. Bugfixes for TIF and EMF output and escape character handling.
v2.6.4 - Datamatrix DMRE updated to the ISO/IEC29158 version. This is incompatible
in the way, that the old -vers numbers for DMRE are re-assigned.
The separator of GS1-datamatrix may be switched from FNC1 to GS.
GS1 field length check AI 8009 and 7230 to 7239 currected.
v2.6.5 - minor bugfixes
v2.6.6 - minor bugfixes
v2.6.7 - Allow to code ECI 3 if explicitly given for debug purposes.
v2.7.0 - new features:
- Automatic height option added to qzint
- DotCode in line with new specification
- New GS1 AIs 7240, 235, 417, 7040, 8026, updated checks for 7007, 8008
- New Symbology rMQR
- QR and Gridmatrix optimisation for GB2312
- removed depreciated interface for gLabels program. Please use current interface.
- Add Ultracode implementation
- Disable full multi byte compression for QR family, Han Xin and Gridmatrix by default. It may be enabled by a new option.
7.4 Sources of Information
Below is a list of some of the sources used in rough chronological order:
- Nick Johnson's Barcode Specifications
- Bar Code 1 Specification Source Page
- SB Electronic Systems Telepen website
- Pharmacode specifications from Laetus
Austalia Post's 'A Guide to Printing
the 4-State Barcode' and bcsample source code
Plessey algorithm from GNU-Barcode v0.98 by Leonid A.
v 8.0 Issue 2
- PNG: The Definitive Guide and wpng source code by Greg Reolofs
PDF417 specification and pdf417 source code by
Barcode Reference, TBarCode/X User Documentation and TBarCode/X
demonstration program from Tec-It
source code by Stefan Schmidt et al
States Postal Service Specification
Adobe Systems Incorporated Encapsulated PostScript File Format
- BSI Online Library
Libdmtx Data Matrix ECC200
7.5 Standard Compliance
Zint was developed to provide compliance with the following British and
BS EN 797:1996 Bar coding - Symbology specifications - 'EAN/UPC'
BS EN 798:1996 Bar coding - Symbology specifications - 'Codabar'
ISO/IEC 12323:2005 AIDC technologies - Symbology specifications - Code 16K
ISO/IEC 15417:2007 Information technology - Automatic identification and data capture techniques - Code 128 bar code symbology specification
ISO/IEC 15438:2015 Information technology - Automatic identification and data capture techniques - PDF417 bar code symbology specification
ISO/IEC 16022:2006 Information technology - Automatic identification and data capture techniques - Data Matrix ECC200 bar code symbology specification
ISO/IEC 16023:2000 Information technology - International symbology specification – Maxicode
ISO/IEC 16388:2007 Information technology - Automatic identification and data capture techniques - Code 39 bar code symbology specification
ISO/IEC 18004:2015 Information technology - Automatic identification and data capture techniques - QR Code bar code symbology specification
- ISO/IEC DIS 20830:2019 (Draft 2019-10-10) Information technology - Automatic identification and data capture techniques - Han Xin Code bar code symbology specification
ISO/IEC 24723:2010 Information technology - Automatic identification and data capture techniques - GS1 Composite bar code symbology specification
ISO/IEC 24724:2011 Information technology - Automatic identification and data capture techniques - GS1 DataBar bar code symbology specification
ISO/IEC 24728:2006 Information technology - Automatic identification and data capture techniques - MicroPDF417 bar code symbology specification
ISO/IEC 24778:2008 Information technology - Automatic identification and data capture techniques - Aztec Code bar code symbology specification
- ISO/IEC JTC1/SC31N000 (Draft 2018-6-8) Information technology - Automatic identification and data capture techniques - Rectangular Micro QR Code (rMQR) bar code symbology specification.
Uniform Symbology Specification Code One (AIM Inc., 1994)
ANSI/AIM BC12-1998 - Uniform Symbology Specification Channel Code
ANSI/AIM BC6-2000 - Uniform Symbology Specification Code 49
ANSI/HIBC 2.3-2009 - The Health Industry Bar Code (HIBC) Supplier Labeling Standard
AIM ISS-X-24 - Uniform Symbology Specification Codablock F
AIMD013 (v 1.34a) – Information technology – Automaic identification and data capture techniques – Bar code symbology specification – DotCode (Revised 19th Feb 2009)
AIMD014 (v 1.63) - Information technology, Automatic identification and data capture techniques - Bar code symbology specification - Grid Matrix (Released 9th Dec 2008)
AIMD-015:2010 (v 0.8) – DRAFT Bar code symbology specification – Han Xin Code (Revised 25th March 2010)
AIM ITS/04-001 International Technical Standard – Extended Channel Interpretations Part 1: Identification Schemes and Protocol (Released 24th May 2004)
AIM ITS/04-023 International Technical Standard – Extended Channel Interpretations Part 3: Register (Released 15th July 2004)
- AIMD/TSC15032-43 (v 0.99c) - International Technical Specification – Ultracode Symbology (Draft) (Released 4th Nov 2015)
- GS1 General Specifications Release 20.0 (Jan 2020)