Greg Ross

A quick and easy shortcode to embed iframe’s that resize to the content of the remote site.
Auto iFrame shortcode is in the format of:
<pre><code>[auto-iframe link=xxx tag=xxx width=xxx height=xxx autosize=yes/no]
</code></pre>
Where:
<ul>
<li>link = the url of the source for the iFrame. REQUIRED.</li>
<li>tag = a unique identifier in case you want more than one iFrame on a page. Default = auto-iframe.</li>
<li>width = width of the iFrame (100% by default). Can be % or px. Default = 100%.</li>
<li>height = the initial height of the iframe (100% by default). Can be % or px. Default = 100%.</li>
<li>autosize = enable the auto sizing of the iFrame based on the content. The initial height of the iFrame will be set to “height” and then resized. Default = true.</li>
<li>fudge = a fudge factor to apply when changing the height (integer number, no “px”). Default = 50.</li>
<li>border = enable the border on the iFrame. Default = 0.</li>
<li>scroll = enable the scroll bar on the iFrame. Default = no.</li>
<li>query = pass the parent’s page query string to the iFrame. Default = no.</li>
</ul>
Note: Auto re-sizing of the iFrame for cross domain sites does not work, this is a security protection provided by the browser and there is no way around it.
Now supports (Shortcode UI)[https://github.com/fusioneng/Shortcake] (aka Shortcake)!

Auto iFrame

A quick and easy shortcode to embed iframe's that resize to the content of the remote site.

mores

This plugin is basically just a little improvement of <a href="https://wordpress.org/extend/plugins/resize-at-upload/" title="Resize-At-Upload" rel="ugc">Resize-At-Upload</a>, a fabulous plugin by A. Huizinga.
The plugin will automatically resize an image upon upload, depending on the maximum width and height that you define. Gone are the days when you, or your client, will ruin a site’s layout by uploading a huge file with 25 megapixels. 
Be advised: there is no backup, no copy of the originally uploaded image.
The plugin uses a class originally from Jacob Wyke (www.redvodkajelly.com).

Resize at Upload Plus

Automatically resize (i.e. scale down) images after uploading. Save disk space and preserve your layout

Auto iFrame vs Resize at Upload Plus