Chinese characters is not shown in [Document Title]

Hello!

PDFCreator is a great program!

However, when I use it to create pdf, I found that Chinese characters cannot be shown in [Document Title].

For example, I use Google Chrome to open 'http://www.baidu.com', and print the page by using 'PDFCreator' printer, the [Document Title] shows "??????????????????", which should be "百度一下,你就知道".

Please fix this problem, thanks a lot!