Hello MrEdodos.

In file../wp-content/plugins/wpdatatables/source/class.wpdatatable.php and around line 3234 you can find:

if (!empty($this->_tableToolsConfig['pdf'])) {
   $obj->dataTableParams->buttons[] =
      array(
          'extend' => 'pdfHtml5',
          'exportOptions' => array('columns' => ':visible'),
          'className' => 'DTTT_button DTTT_button_pdf',
          'orientation' => 'portrait',
          'title' => $wdtExportFileName,
          'text' => __('PDF', 'wpdatatables')
       );
}

Please change the 'orientation' from 'portrait' to 'landscape', like this:

if (!empty($this->_tableToolsConfig['pdf'])) {
   $obj->dataTableParams->buttons[] =
      array(
          'extend' => 'pdfHtml5',
          'exportOptions' => array('columns' => ':visible'),
          'className' => 'DTTT_button DTTT_button_pdf',
          'orientation' => 'landscape',
          'title' => $wdtExportFileName,
          'text' => __('PDF', 'wpdatatables')
       );
}

Best regards.

Hello again MrEdodos.

I am sorry to inform You, but yes - You'll have to make the change every time the plugin is updated.

Unfortunately, there is no way to reduce the dimensions of the table so it fits the whole sheet.

Generated PDF, XLS, CSV are not customizable. Unfortunately, the library allows very little “fine-tuning” of the generated files, so font, size, and other properties cannot be changed.

This, and all other Table Tools limitations can be found in our documentation.

Adding logos, or custom text in the export files is also not possible at the moment.

Best regards.