Install the MultimediaViewer extension
The MultimediaViewer extension gives wiki users a different interface for viewing full-size, or nearly full-size, images in their browser without extraneous page loads or confusing interstitial pages.
To install the MultimediaViewer plugin, please follow the steps below:
Download the latest MultimediaViewer version from the official Mediawiki extension page.
Uncompress the downloaded file in the extensions directory of Mediawiki. The command below should create the Collection directory in the Mediawiki extensions directory:
$ tar -xzf MultimediaViewer-*.tar.gz -C /opt/bitnami/apps/mediawiki/htdocs/extensions
Add the MultimediaViewer plugin to the Mediawiki LocalSettings.php file:
require_once "$IP/extensions/MultimediaViewer/MultimediaViewer.php";
If you have enabled PageSpeed you will need to disable it for the images directory. To do this, edit the file /opt/bitnami/apps/mediawiki/conf/htaccess.conf and modify the Directory directive for that directory. The Directory directive should look like this:
<Directory "/opt/bitnami/apps/mediawiki/htdocs/images">
# Protect against bug 28235
<IfModule rewrite_module>
RewriteEngine On
RewriteCond %{QUERY_STRING} \.[^\\/:*?\x22<>|%]+(#|\?|$) [nocase]
RewriteRule . - [forbidden]
</IfModule>
ModPagespeed off
</Directory>