cybio

With this plugin you can cache gravatar images on your server (and they will be delivered with the cache settings of your webserver).
Please report bugs and/or feature-request to our ticket-system: <a href="http://trac.splash.de/glc" rel="nofollow ugc">Bugtracker/Wiki</a>. 
For Support, please use the <a href="http://board.splash.de/forumdisplay.php?f=105" rel="nofollow ugc">forum</a>. 
Latest development news: <a href="http://twitter.com/cybiox9" rel="nofollow ugc">Twitter</a>.
<h3>ToDo</h3>
<ul>
<li>[NEW] cronjob to refresh cached images</li>
</ul>

GravatarLocalCache

Local cache for gravatar images (saves dnsqueries and let you control cache/proxysettings of the images).

Michael Wang

Additional grabber for <a href="https://wordpress.org/plugins/qqworld-auto-save-images/" rel="ugc">QQWrorld-Auto-Save-Images</a>, It can grab pdf for now.
for example:
<a href=”http://example.com/example.pdf” title=”pdf”>Example PDF</a>
Notice: This’s a plugin of <a href="https://wordpress.org/plugins/qqworld-auto-save-images/" rel="ugc">QQWorld-Auto-Save-Images</a>, Need <a href="https://wordpress.org/plugins/qqworld-auto-save-images/" rel="ugc">QQWorld-Auto-Save-Images</a> 1.7.12.11 or higher version.
////////////////////////////////////////////////////
<a href="https://wordpress.org/plugins/qqworld-auto-save-images/" rel="ugc">QQWorld自动保存图片</a>的额外抓取工具，目前可以抓取PDF。
示例：
<a href=”http://example.com/example.pdf” title=”pdf”>示例PDF</a>
提示：这是<a href="https://wordpress.org/plugins/qqworld-auto-save-images/" rel="ugc">QQWorld自动保存图片</a>的插件，需要<a href="https://wordpress.org/plugins/qqworld-auto-save-images/" rel="ugc">QQWorld自动保存图片</a> 1.7.12.11 或更高版本。

Grabber for QQWorld Auto Save Images

Additional grabber for QQWrorld Auto Save Images. QQWorld自动保存图片的额外抓取工具。

GravatarLocalCache vs Grabber for QQWorld Auto Save Images