agl’s jbig2enc 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/

Jbig2enc can convert other format image to jbig2 or fragments for embedding in PDFs, and pdf.py can convert the fragments to PDF document.
for example, if you want to convert a.bmp to pdf, you can do it in this way
jbig2 -s -p a.bmp
you get output.0000 and output.sym files
python pdf.py output>jbig2.pdf
btw, itext and itextsharp also supports convert jbig2 to pdf now.
After some efforts, I have successfully compiled jbig2 under Window XP with GCC 4.2(MingW32+MSYS), for details and download, please visit Windows version of agl’s jbig2enc, from this page, you can also download the linux compiled version.

reference,
Windows version of agl’s jbig2enc
agl’s jbig2enc home page

Please visit How to fix pclzip_err_bad_format issue when automatically update Piwik

Piwik releases the new version 0.4.5, but when I tried to use Automatically update, I got the following error message,

Incompatible archive: PCLZIP_ERR_BAD_FORMAT (-10) : Unable to find End of Central Dir Record signature

After search, I got the answer, it is a bug of version 0.4.5, and has been fixed in svn, seems I’d better await the Piwik 0.5

This is a index page of my mono and asp.net articles, so I will continue update this page when I have new articles.

1.Prepare a CentOS hosting, in my case, I use CentOS VPS, I have introduced how to install OpenVZ and Create VPS before.

2.Install Mono 2.4.2.3 on CentOS 5.

3.Install XSP, mod_mono and configure Apache to run ASP.NET application with Apache web server.

P.S.
Q:Why I choose VPS?
A:It can make me easily and quickly roll back the installation(to the last correct snapshot) when I make mistake with the help of vzdump.