Windows version JBIG2 Encoder-Jbig2.exe

This page only offer Window version jbig2 Encoder, for moreÂ solution, please visitÂ Open Source Jbig2 Encoder and Decoder.

If you wantÂ Windows Dynamic Libary, please visitÂ Lossless JBIG2 Encoder Windows Dynamic Libary

About JBig2enc Win32 version

This is a Windows version of agl’s jbig2enc compiled by RubyPdf software under Windows XP with GCC4.2(MingW32+MSYS).
I also modified pdf.py to let it works under windows, the main feature of pdf.py is convert jbig2 to PDF.
with the jbig2, you can easily convert other format image to PDF.

Change logs

Oct 26, 2010,Â jbig2enc win32 version update to 0.27.

Nov 2, 2009
*pdf.py create correct PDF to stdout under windows
for details, please visit http://blog.rubypdf.com/2009/11/03/how-to-let-python-send-binary-data-to-stdout-under-windows/
*fix a bug, that jbig2.exe -p can not get the correct content, also stdout issue.
Oct 29, 2009
first release,
successfully compiled jbig2.exe
pdf.py can create correct PDF to file under windows

About jbig2enc

This is an encoder for JBIG2:
www.jpeg.org/public/fcd14492.pdf

JBIG2 encodes bi-level (1 bpp) images using a number of clever tricks to get
better compression than G4. This encoder can:
   * Generate JBIG2 files, or fragments for embedding in PDFs
   * Generic region encoding
   * Perform symbol extraction, classification and text region coding
   * Perform refinement coding and,
   * Compress multipage documents

It uses the (Apache-ish licensed) Leptonica library:
  http://www.leptonica.com/

download agl-jbig2enc-win32-0.27 (468k)

download here

reference,
Convert JBIG2 to PDF with free and open source software aglâ€™s jbig2enc

aglâ€™s jbig2enc home page

How to Let Python Send Binary data to stdout under Windows

P.S.
If you want to Linux bin version, please download here.
It is free software, but donations are welcome.

39 Responses to "Windows version JBIG2 Encoder-Jbig2.exe"

ìƒ˜ì²˜ëŸ¼ì˜ ë–½ ì´ì•¼ê¸°? says:

July 9, 2011 at 5:08 pm

windowsì—ì„œ jbig2ì„ ì´ìš©í•œ pdfë§Œë“¤ê¸°…

@echo off rem convert bitmap file to pdf using jbig2 format rem It can be dramatically decrease file size. rem But only bi-level file ^^ rem rem (c)likesam 2011-09-09 ……
admin says:

July 10, 2011 at 12:17 am

include the modified version pdf.py into the last jbig2.exe, thanks for your introduction.
Armin says:

September 8, 2011 at 6:25 pm

Hi Steven,
thanks for the port to windows. It works very good, produces small pdf-file sizes. Only one strange thing happens. The generate pdf files have a huge page-size. For example if I process A4-size pages (29.7×20.9cm) @400dpi tiff or png the pdf file size is 164.9×116.6 cm.
Is it possible to fix this by the python pdf.py or is jbig2.exe responible for this?
Thanks
Armin
admin says:

September 9, 2011 at 1:27 am

Hi Armin,
Thanks for your comment.
In fact, I am not familiar with python, and I notice the last version pdf.py use 600 as default dpi, and after check the source code of jbig2, I modify the pdf.py to automatically get the x resolution(xres) and y resolution(yres), so the real with or pdf page is 72*width/xres, and height is 72*height/yres.
Please check the modified pdf.py, and let me know if it is correct or not.
Thanks in advance.

P.S. I also sent you an Email with the same content.
admin says:

September 9, 2011 at 10:17 am

Hi Steven,

thank you very much for your quick response, and the new pdf.py
which works perfect. (I checked it with my 400dpi page scans.
the pdf page size is now of the same size as the scans)

Thank you so much,
Greetings from rainy Germany 🙂

Armin
Neel Roy says:

September 11, 2011 at 1:34 am

Hi Admin,

Greetings 🙂

Could you kindly let me know which exact version of python do I need to install to get this to run ?
Neel Roy says:

September 11, 2011 at 2:09 am

Hi,

I executed jbig2.exe and got several output files and 1 output.sym file. I placed these along with pdf.py under pyhton installation dir and executed it…

This is what I got…
———————————————–
C:\Python27>python pdf.py output> jbig2.pdf
Traceback (most recent call last):
File “pdf.py”, line 173, in
main(sym, pages)
File “pdf.py”, line 128, in main
contents = Obj({}, ‘q %d 0 0 %d 0 0 cm /Im1 Do Q’ % (72*width/xres, 72*heigh
t/yres))
ZeroDivisionError: integer division or modulo by zero
———————————————–

Not sure what am I doing wrong 🙁
Neel Roy says:

September 11, 2011 at 2:40 am

I think I got what was causing…some indentation error

At least i am not getting any error now and pdf file is being generated, but its a single page (whereas there are atleast 140 output files) BLANK pdf and I am getting error while trying to read with adobe 🙁
admin says:

September 13, 2011 at 10:35 am

I use python2.7 on my windows 7 (64-bit)
admin says:

September 13, 2011 at 10:36 am

maybe it is a bug, please send me the image to test, thanks in advance.
admin says:

October 4, 2011 at 3:00 pm

fixed the bug when xres/yres is zero, can download the jbig2.zip again, or directly view the pdf.py source code.
Michael says:

October 7, 2011 at 8:15 pm

Hello!

I downloaded latest complect (download agl-jbig2enc-win32-0.27 (468k) ) and tried to use it with one image.
After launching “jbig2.exe -s -p book_1.tif” I got output.0000 and output.sym.
Then I launched “pdf.py output > out.pdf”. My final pdf-file has size 0. I get this error:

> D:\tst>pdf.py output > out.pdf
> File “D:\tst\pdf.py”, line 148
> print str(doc)
> ^
> SyntaxError: invalid syntax

What do I do wrong?
Michael says:

October 7, 2011 at 9:09 pm

Installed python 2.7 instead 3.2 and now pdf.py create pdf-file. But if I try to open it Adobe Reader 9 writes “insufficient data for an image”.
Files output.0000 and output.sym together has size about 16kb, but created pdf-file is about 12kb.

What can be wrong?
Michael says:

October 10, 2011 at 4:35 pm

Finally got everything worked.

Pdf.py should be corrected like it is written in this page. I thought that it is already correct.
admin says:

October 16, 2011 at 9:51 am

Could you give me a picture to test, thanks in advance
WMJ says:

October 17, 2011 at 9:43 am

Thanks for publishing the compiled EXE file. It does save me a lot of works. Is it possible to compile it as a win32 DLL file which exposes methods in jbig2enc.h?
WMJ says:

October 17, 2011 at 9:47 pm

I am having trouble to work with the EXE file on .NET. I tried to start a process and capture the content from stdout to a byte array. The problem is that LF is turned into CR-LF by the system, which results incorrect result.
Is it possible to specify an output file name from the parameters or provide a DLL file so I can use DllImport to work with it?
WMJ says:

October 17, 2011 at 9:49 pm

I am having trouble to work with the EXE file on .NET. I tried to start a process and capture the content from stdout to a byte array. The problem is that LF is turned into CR-LF by the system, which leads to incorrect results.
Is it possible to specify an output file name from the parameters or provide a DLL file so I can use DllImport to work with it?
WMJ says:

October 19, 2011 at 12:36 pm

I’ve recompiled the encoder and simply added a line before sending any data to stdout which has fixed the LF->CR-LF issue.

The line is:
_setmode (1, O_BINARY);
(add the above line before each “write(1, ret, length);”)
admin says:

October 19, 2011 at 12:53 pm

Great.
Xonir says:

November 23, 2011 at 9:25 pm

Hello Michael,
I have the same problem..I got blank PDF and Acrobat 9 returns the error: “insufficient data for an image”. How have you solved this issue?
admin says:

November 24, 2011 at 11:04 am

if possible, please give me the sample image. thanks in advance.
Tuan Nguyen says:

December 20, 2011 at 12:34 am

Hi all,
Default jbig2enc support lossless compression. I would like to know how we can apply lossy algorithm?

Thanks,
Tuan Nguyen.
scribbleed says:

January 12, 2012 at 3:54 pm

I am just getting a black PDF. I’ve sent an email to you with the test images I used.
admin says:

January 18, 2012 at 4:18 am

sorry, I did not get the test images, could you send me again? thanks.
scribbleed says:

January 25, 2012 at 4:24 pm

I’ve resent the email to rubypdf. Please have a look.
Joe says:

April 3, 2012 at 12:53 pm

Hi,Admin
Could you please also compile the JBIG2DEC and send the exe file to me. I need it to do some experiments. But i am a beginner and dont know how to compile it.
Thank you so much!
admin says:

April 6, 2012 at 11:08 pm

You can download the windows pre-compiled version here,
http://bfo.com/products/pdf/jbig2/
and if you want the last version, please let me know.
Bob says:

August 30, 2012 at 5:09 pm

Hi,

When running “pdf.py output > out.pdf” on Win7 I am getting:

(width, height,xres,yres) = struct.unpack(‘>IIII’, contents[11:27])
struct.error: unpack requires a string argument of length 16″

Any ideas?
Vishwas says:

December 19, 2014 at 10:24 pm

Hi Admin,

I am trying to encode .tif files to .jbig2 in Windows 7 and I get the following error.

jbig2 -s *.tif > out.jbig2

TIFFFetchDirectory: TIFFstream: Can not read TIFF directory
TIFFReadDirectory: TIFFstream: Failed to read directory at offset 0.
Error in findTiffCompression: tif not opened.

Can I know why I am getting this error, is there a solution to this problem and how to solve it?

Thanks.
admin says:

December 22, 2014 at 6:18 pm

Please offer the tiff example, so I can find out why. btw, I sent you a email to let you know my email, if needed.
Tom says:

July 21, 2015 at 1:35 pm

Hi!
I also downloaded the decoder at http://bfo.com/products/pdf/jbig2/ as you recommended

but when I try:

jbig2 -s feyn.bmp >feyn.jb2
jbig2dec-0_10.exe feyn.jb2

I got:
jbig2dec FATAL ERROR Not a JBIG2 file header

What should I do?
Tom says:

July 21, 2015 at 1:53 pm

And, when I use the dumped PNG file as the input, I get these message:

Error in findFileFormatStream: failed to read first 12 bytes of file
source image: 1280 x 720 (1 bits) 72dpi x 72dpi, refcount = 1
thresholded image: 1280 x 720 (1 bits) 72dpi x 72dpi, refcount = 2
JBIG2 compression complete. pages:1 symbols:2 log2:1
Chunqiang Yu says:

January 8, 2016 at 11:05 am

Hello!
I need to use JBIG2 to compress the location map(a binary image ) on reversible data hiding. I am a beginner about JBIG2 and don’t know how to compress a binary image losslessly. Let be in.jpg is a binary image.
“./jbig2 -s in.jpg >out.jbig2”.
This command is rightï¼Ÿ
admin says:

January 10, 2016 at 11:46 am

USAGE:

See the jbig2enc.h header for the high level API, or the jbig2 program for an
example of usage:

$ jbig2 -s -p -v *.jpg && pdf.py output >out.pdf

to encode jbig2 files for pdf creation.
If you want to encode an image and then view output first to include in pdf

$ jbig2 -s -S -p -v -O out.png *.jpg

If you want to encode an image as jbig2 (can be view in STDU Viewer) run:

$ jbig2 -s feyn.tif >feyn.jb2
Chunqiang Yu says:

January 12, 2016 at 5:08 pm

Thank you very much!
lucky says:

June 28, 2016 at 4:28 am

is it possible to provide an updated version (latest is 0.28dist)
tank says:

December 29, 2017 at 1:13 pm

hi
I us the “jbig2 -s feyn.tif >feyn.jb2” command to create a jb2 file,
but STDU Viewer can not view ?
is it possible to provide an updated version?
admin says:

January 3, 2018 at 11:41 am

this is for pdf creation, not for the image viewer.

About JBig2enc Win32 version

Change logs

About jbig2enc

download agl-jbig2enc-win32-0.27 (468k)

download here

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