mPDF is a PHP library for generating PDF files from HTML with Unicode/UTF-8 and CJK support. It is distributed under the GNU General Public License. Although it is slower than its protoplast (fpdf library) it supports Unicode characters while fpdf does not.
mPDF is a PHP class which generates PDF files from UTF-8 encoded HTML. It is based on FPDF and HTML2FPDF, with a number of enhancements.