Spencer Piontkowski

<h4>What is this?</h4>
<p>I found the WordPress Importer plugin is good for importing posts and comments, but is lacking when it comes to importing large attachments (like images) from large sites. My import would often time out and crash. I wrote this plugin to help with my own blog migrations, but I hope you find it useful too.</p>
<h4>Usage</h4>
<ol>
<li>As a prerequisite, import your WXR file using the WordPress importer, but do not select the option to Download and Import Attachments. I have found that an import file up to 15MB big will work as long as you don’t import attachments.</li>
<li>Navigate to the Attachment Importer screen.</li>
<li>Select your WXR export file.</li>
<li>Select the user you would like to be the owner of the downloaded images. Default: current user.</li>
<li>Sit back and let the importer run. The process can take as little as 10 seconds for 10 images, or about two hours for 2000 images. These times depend on the server that hosts your WordPress site.</li>
<li>If you receive any errors during the process, try running the file again after it finishes.  The plugin is programmed to ignore files that match the following criteria:
<ul>
<li>Same name</li>
<li>Same file name</li>
<li>Same upload date</li>
<li>Same file size</li>
</ul>
</li>
</ol>
<h4>How it works.</h4>
<p>This plugin uses <a href="https://developer.mozilla.org/en-US/docs/Web/API/FileReader" rel="nofollow ugc">FileReader</a> and to parse the XML file in the browser, then uses ajax to request WordPress perform individual uploads.</p>
<h4>License</h4>
<p>Attachment Importer – A plugin for WordPress to import attachments from another blog using a WXR file.<br />
Copyright (C) 2014 Toasted Lime</p>
<p>This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.</p>
<p>This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.</p>
<p>You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.</p>
<p>The license and copyright applies to all resources bundled with this plugin, except as noted below:</p>
<p>Portions of this plugin use code from:</p>
<ul>
<li><a href="https://wordpress.org/extend/plugins/wordpress-importer/" rel="ugc">WordPress Importer</a> which is distributed under the terms of the GNU GPL v2, Copyright (C) 2013 wordpressdotorg.</li>
<li><a href="http://jqueryui.com/themeroller/" rel="nofollow ugc">jQuery UI Smoothness Theme</a> which is distributed under the terms of MIT License, Copyright (C) 2014 jQuery Foundation and other contributors.</li>
</ul>
<h3>Changeset</h3>
<h4>0.6.0</h4>
<p>Should not get “Remote server did not respond” as often.</p>
<h4>0.5.6</h4>
<ul>
<li>Invalid file type produces non-fatal error.</li>
</ul>
<h4>0.5.5</h4>
<ul>
<li>Added an overall progress bar.</li>
<li>Improve how the program responds to events like fatal errors, AJAX failure, or if there are no attachments in the import file.</li>
</ul>
<h4>0.5.4</h4>
<ul>
<li>Fixed issue reading namespaces in import file that caused the program not to work in FireFox and Internet Explorer.</li>
<li>Moved plugin to Import menu from the Media menu.</li>
</ul>
<h4>0.5.3</h4>
<ul>
<li>Added option to add five second delay between image ajax requests</li>
<li>Reformat Readme</li>
<li>Added jQuery tooltip</li>
</ul>


Attachment Importer

Thank you so much for sharing this with the WP community. It helped me get around timeouts and so much frustration. I didn't find any problems with the plugin.

Very helpful plugin that works

I found this plug-in as I was having trouble moving data on a shared server that can not be migrated.
Importing of media that has failed many times is proceeding smoothly.
Thank you for a wonderful plugin !!

Thank you so much!!!!

Even though the plugin hasn't been updated for quite a while, it still works great even with the latest WordPress (5.3). Thanks for the development!

Still great!

Import attachments from another WordPress blog using a WXR file.

Jacob Allred

nir0ma

<p><strong>New features compared to CW Image Optimizer?</strong></p>
<ol>
<li>New plugin structure with many code rewrites and performance improvments</li>
<li>Bulk Optimization now uses ajax to optimize images and can handle huge amount of images. Bulk optimization tests were performed successfully on a 200k+ media library … yes it tooked a while to run the test, but it worked 🙂 whereas all image optimization plugins I had been testing were failing on a 15k+ media library !</li>
<li>Optimize function can now fix images meta if structure is not correct</li>
<li>Bulk Optimization can now be performed on All images or only the ones that haven’t been optimized yet</li>
<li><strong>Save even more disk space</strong> with Lossy Jpeg Compression (Fallback to lossless compression if fails)</li>
</ol>
<p>The WP Image Optimizer is a WordPress plugin that will automatically and losslessly optimize your images as you upload them to your blog. It can also optimize the images that you have already uploaded in the past.</p>
<p>Because WP Image Optimizer uses lossless optimization techniques, your image quality will be exactly the same before and after the optimization. The only thing that will change is your file size.</p>
<p>The WP Image Optimizer plugin is based on the WP Smush.it plugin. Unlike the WP Smush.it plugin, your files won’t be uploaded to a third party when using WP Image Optimizer. Your files are optimized using the Linux <a href="http://sourceforge.net/projects/littleutils/" rel="nofollow ugc">littleutils</a> and <a href="https://github.com/danielgtaylor/jpeg-archive" rel="nofollow ugc">jpeg-recompress</a> image optimization tools (available for free). You don’t need to worry about the Smush.it privacy policy or terms of service because your images never leave your server.</p>
<p><strong>Why use WP Image Optimizer?</strong></p>
<ol>
<li><strong>Your pages will load faster.</strong> Smaller image sizes means faster page loads. This will make your visitors happy, and can increase ad revenue.</li>
<li><strong>Faster backups.</strong> Smaller image sizes also means faster backups.</li>
<li><strong>Less bandwidth usage.</strong> Optimizing your images can save you hundreds of KB per image, which means significantly less bandwidth usage.</li>
<li><strong>Super fast.</strong> Because it runs on your own server, you don’t have to wait for a third party service to receive, process, and return your images. You can optimize hundreds of images in just a few minutes.</li>
<li><strong>Robust</strong> I needed a bulletproof plugin, able to handle thousands of files and working using cron-task with wp-cli. Most of the optimization plugins I had been testing failed, so I decided to build a new version of cw image otpimizer to suit my neeeds.</li>
</ol>
<h3>Troubleshooting</h3>
<p><strong>littleutils is installed, but the plugin says it isn’t.</strong> If you are confident that it is installed properly, then go to the plugin configuration page and disable the installation check.</p>
<p>It is also possible that your binaries aren’t accessible to your web server user (especially while using a cron task or wp-cli to create posts). You can link these binaries using the following commands:</p>
<pre><code>ln -s /usr/local/bin/opt-jpg /usr/bin/opt-jpg

ln -s /usr/local/bin/opt-png /usr/bin/opt-png

ln -s /usr/local/bin/opt-gif /usr/bin/opt-gif

ln -s /usr/local/bin/tempname /usr/bin/tempname

ln -s /usr/local/bin/imagsize /usr/bin/imagsize

ln -s /usr/local/bin/gifsicle /usr/bin/gifsicle

ln -s /usr/local/bin/pngcrush /usr/bin/pngcrush

ln -s /usr/local/bin/pngrecolor /usr/bin/pngrecolor

ln -s /usr/local/bin/pngstrip /usr/bin/pngstrip
</code></pre>
<h3>Contact and Credits</h3>
<ul>
<li>Handcrafted with <3 by <a href="https://www.niroma.net" rel="nofollow ugc">Niroma</a></li>
<li>Wp Image optimizer Plugin Icon by <a href="http://www.freepik.com" rel="nofollow ugc">Freepik</a></li>
<li>Aliens by <a href="https://openclipart.org" rel="nofollow ugc">OpenClipart</a></li>
<li>Jpeg Recompress installation instructions by <a href="https://guides.wp-bullet.com/batch-optimize-jpg-lossy-linux-command-line-with-jpeg-recompress/" rel="nofollow ugc">WP Bullet</a></li>
<li>Wp Image optimizer is based on the famous CW Image Optimizer by <a href="http://www.jacoballred.com/" rel="nofollow ugc">Jacob Allred</a>.</li>
</ul>


WP Image Optimizer

Reduce image file sizes and improve website performance using Linux littleutils image optimizers within WordPress.

Attachment Importer vs WP Image Optimizer