The document viewer is maintained by a volunteer community. You are welcome to participate. If you notice a problem you can file a bug report. To file a bug, go to .
这是一个用户和开发者都可以对漏洞，程序崩溃和请求的功能增强进行归档的漏洞追踪系统。
To participate you need an account which will give you the ability to gain access, file bugs, and make comments. Also, you need to register so you can receive updates by e-mail about the status of your bug. If you don't already have an account, just click on the Sign in / Register link to create one.
Once you have an account, log in, and click on New issue.
Before reporting a bug, please read the bug writing guidelines, and please browse for the bug to see if it already exists.
If you are requesting a new feature, choose 1. Feature in the Labels menu.
Fill in the Title and Description sections and click Submit Issue.