A MediaWiki extension providing parser function {{#file_data:}} returning uploaded file's metadata.
cd mediawiki/extensions
git clone https://github.com/alex-mashin/FileData.gitAdd to LocalSettings.php:
wfLoadExtension( 'FileData' );Width: {{#file_data:Some uploaded file.png|width}}
Allowed attributes:
name,size,width,height,bits,media_type,major_mime,minor_mime,timestamp,sha1,description,user,user_text,metadata,- whatever fields are present in the image metadata.