From mediawiki.org
Available from version ???
Override or modify the ImageMagick rendering command of TIFF files, just before $cmd is executed
Define function:
public static function onPagedTiffHandlerRenderCommand( string &$cmd, string $srcPath, string $dstPath, int $page, int $width, int $height, array $scalerParams ) { ... }
Attach hook:
$wgHooks['PagedTiffHandlerRenderCommand'][] = 'MyExtensionHooks::onPagedTiffHandlerRenderCommand';
Called from:File(s): PagedTiffHandler / includes/PagedTiffHandler.php
Function(s): transformIM

For more information about attaching hooks, see Manual:Hooks .
For examples of other extensions using this hook, see Category:PagedTiffHandlerRenderCommand extensions.


  • &$cmd - The command that will be executed by wfShellExecWithStderr after this hook has run
  • $srcPath - Path of the source file that will be converted (and page offset)
  • $dstPath - Path of the to be created transformed image
  • $page - Page to be transformed
  • $width - Width of the page to be transformed
  • $height - Height of the page to be transformed
  • $scalerParams - Scaling options (see TransformationalImageHandler::doTransform)