MediaWiki Images

How to add images to MediaWiki?

To upload images, you should ensure that:

• The 'images' directory is writeable
• Upload in MediaWiki is enabled. To do this, you should set $wgEnableUploads in LocalSettings.php to true
• The file type you wish to upload must be allowed in ../../includes/DefaultSettings.php:

  $wgFileExtensions = array( 'png', 'gif', 'jpg', 'jpeg', 'doc', 'xls', 'pdf' );

You can also set

$wgStrictFileExtensions = false;

to allow most file types to be uploaded.

• The user is logged in

Uploading Directly from a URL

You can allow users to directly upload files from a URL. To allow this, in includes/DefaultSettings.php you should set:

$wgAllowCopyUploads = true

To add an image to a post, you need to indicate it in your post as an image using :

[[image:test.png]]

(where test.png is the name of the image).

You can also add thumbnailed images using:

[[image:test.png|thumb|caption]]

The image can be aligned so that you can add text next to it. Here is an example how to create a left aligned image:

[[image:test.png|left|thumb|50px|]]

Upload Permissions

By default, all registered users can upload files. To change this, you have to modify $wgGroupPermissions in includes/DefaultSettings.php:

• To prevent normal users from uploading files, you should set:

  $wgGroupPermissions['user']['upload'] = false;

• To create a special group called "uploadaccess", and allow members of this group to upload files, you should set:

  $wgGroupPermissions['uploadaccess']['upload'] = true;

• To allow "autoconfirmed" (non-newbie) users to upload files, you should set:

  $wgGroupPermissions['autoconfirmed']['upload'] = true;