Basically consider using them as 'cache'. Those entities can be deleted individually or fully cleaned. You can view all details concerning Media entities using the pdf image thumbnail. The list of the stored entities can be found here : Administration » Configuration » Multimedia » Media PDF Thumbnail (/admin/media-pdf-thumbnail/settings/list). $render = $token->replace('', ) // Returns image linked to pdf html render $fileId = Drupal::token()->replace('', ) // Returns image html render $fileUri = Drupal::token()->replace('', ) // Returns image file id can be 'image_uri' or render render and link image to pdf file : // Returns image file uri The original image of the thumbnail field is never modified, it is just replaced on display.ĭon't forget to clear caches after any changes for rebuilding the field render. When the thumbnail field is rendered, the image file will be fetched from the storage entity. The storage system is similar to the Redirect module.

When rendering the thumbnail field, the image from the file field (the one choosen in the field formatter's options) will be created and stored in a storage entity. Install as you would normally install a contributed Drupal module and enabled it.Ĭhoose the 'Media PDF Thumbnail Image' field formatter in the Media entity view mode for thumbnail field and set desired options. Install spatie/pdf-to-image: composer require spatie/pdf-to-image Spatie/pdf-to-image library: composer require spatie/pdf-to-image. The default thumbnail can be replaced by an image generated from a pdf file referenced in any file field of any Media entity. The module provides an image field formatter for the thumbnail field of Media entities.

Create thumbnail from pdf