# ownCloud Administrators Manual

# Previews

ownCloud allows for thumbnail previews of files. This section contains the different configuration parameters available for that functionality.

Parameter | Format | Description
Enable Previews | ‘enable_previews’ => true, | When enabled, default, the user will have file thumbnails visible. Disable to remove thumbnails.
Preview Width | ‘preview_max_x’ => null, | Maximum width of the thumbnail. Default is null meaning no limit.
Preview Height | ‘preview_max_y’ => null, | The maximum height of the thumbnail. Default is set to null meaning no limit.
Scale Factor | ‘preview_max_scale_factor’ => 10, | Scale the thumbnail by this factor. Default is 10.
Libreoffice Path | ‘preview_libreoffice_path’ => ‘/usr/bin/libreoffice’, | ownCloud uses Libre Office for previews. This parameter indicates the location of the Libre Office executable.
Libreoffice Parameters | ‘preview_office_cl_parameters’ => ‘’, | Use this if Libre Office requires additional arguments