Frequently Asked Question

WordPress has some odd restrictions on uploading valid image types to the media library.

One that seems to work well, and is being updated is: "File Upload Types by WPForms"

https://wordpress.org/plugins/file-upload-types/

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Or, to allow any file types to be uploaded to WP, put this in the wp-config.php file:

  define('ALLOW_UNFILTERED_UPLOADS', true);

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Optimally, filetypes should be added through the functions.php file in your theme:

  function my_custom_mime_types( $mimes ) {
  // New allowed mime types.
  $mimes['svg'] = 'image/svg+xml';
  $mimes['svgz'] = 'image/svg+xml';
  $mimes['doc'] = 'application/msword';
  // Optional. Remove a mime type.
  unset( $mimes['exe'] );
  return $mimes;
  }
  add_filter( 'upload_mimes', 'my_custom_mime_types' );