<p>This plugin provides an additional sortable column in the wp-admin Posts screen that allows you to sort the posts by total size of all attachments. If your post has 10 images attached, the number shown will be the total file size of all 10 images added together. This is useful for WordPress websites with a lot of photo galleries.</p>
<h3>Usage</h3>
<ol>
<li>Simply install the plugin and activate using the directions above. The sortable wp-admin column will be added automatically.</li>
<li>You can also use the shortcode provided to return the file sizes. Usage is as follows:
<ul>
<li><code>[pas_display_post_size post_id=false single=false return="both"]</code>
<ul>
<li><code>post_id</code> = The post ID (if <code>single = true</code> then use the attachment ID) [OPTIONAL]</li>
<li><code>single</code> = Set to <code>true</code> if you only want the size of ONE attachment (MUST set the <code>post_id</code> to the attachment ID if this is true)</li>
<li><code>return</code> = Default <code>both</code>: returns both the raw byte size of the file AND the formatted value.
<ul>
<li>Use <code>byte</code> to return JUST the byte value.</li>
<li>Use <code>formatted</code> to return JUST the formatted file size</li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
</ol>


Post Attachment Sizes

Post Attachment Size calculates the total size of all attachments attached to a post and provides a sortable column in the wp-admin post list based on …

lmwebdesign

<p>This plugin reads the Custom Post Types (CPT) > Post > Attachment logical structure and creates a<br />
similar file tree structure with a few  clicks, example:</p>
<ul>
<li>CTP Name > Post Name > Attached File(s)</li>
<li>CTP Directory > Post Name Directory > Attached File(s)</li>
</ul>
<p>Directories can be created at the CPT or Post level, example:</p>
<ul>
<li>User creates directory at CTP level, “CTP > all Posts > Attachment(s)” tree is created. </li>
<li>User creates directory at Post level, “CTP > selected Post > Attachment(s)” tree is created</li>
</ul>
<p>Once created they can be zipped at the CTP or Post level. Once zipped they can be directly downloaded.</p>
<h3>Arbitrary section</h3>


LMWD Tree Zip

Takes the Custom Post Type > Post > Attachments logical structure and creates similar file tree structure.

Post Attachment Sizes vs LMWD Tree Zip