Generate image for existing pdf's

Hi derrickmg.

Activate the plugin and add this code to your functions.php.
Then, Click “Regenerate PDF” link in “settings”.
After generating images, remove function from your php.

Thank you.

function regenerate_pdf_image_menu() {
  add_options_page('Force regenerate uploaded PDFs', 'Regenerate PDF', 5, 'regenerate_pdf', 'regenerate_pdf_image_page');
}
function regenerate_pdf_image_page() {
  echo '<div class="wrap"><h2>Regenerate uploaded PDFs</h2>';
	$pdfs = get_posts(array('post_type'=>'attachment','post_mime_type'=>'application/pdf','numberposts'=>-1));
	if($pdfs): foreach($pdfs as $pdf):
		$thumbnail_id = get_post_meta( $pdf->ID, '_thumbnail_id', true );
		if( $thumbnail_id ){
			echo 'attachment id: '.$pdf->ID.' / A thumb is already exist.<br/>';
		} else {
			pigen_attachment($pdf->ID);
			echo 'attachment id: '.$pdf->ID.' / A thumb is generated!! <br/>';
		}
	endforeach; endif;
  echo '</div>';
}
add_action('admin_menu', 'regenerate_pdf_image_menu');

Worked great thanks

resolved

Great! I needed that too, thanks Mizuho! I was worried I was going to have to re-upload all my PDFs ??

I uploaded the plugin to 1.2.1. and add the plugin page in ‘setting.’
You can generate thumbnails in there.

Thats awesome, thanks, great plugin.