shawfactor

Save post as text, html, pdf, or epub. Useful for enabling downloads of your content.
The format of the downloadable attachment can be modified by use of templates.

LH Save Down

Save posts and pages in text, html, epub, or pdf attachment format. Only post content is saved all other stuff gets discarded.

HuangYe WuDeng

This plugin generates PDF documents for visitors when they click the “Download as PDF” button below the post. Very useful if you plan to share your posts in PDF format. 
Note: You can replace the logo file logo.pngunder wp-content/plugins/down-as-pdf/images/ with your own. 
注意：请将wp-content/plugins/down-as-pdf/images/目录下面的logo.png文件替换成你自己网站的logo
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<li>中文介绍请到<a href="http://ihacklog.com/?p=3771" title="插件主页" rel="nofollow ugc">插件主页</a></li>
</ul>

Hacklog Down As PDF

This plugin generates PDF documents for visitors when they click the "Download as PDF" button below the post.

LH Save Down vs Hacklog Down As PDF