Drupal 9/8 - How to easily display and embed a PDF file as an iFrame using the Drupal PDF module

Easy, actual tutorial and step-by-step demonstration on how to best embed a PDF display, viewer, or iFrame within your Drupal webpages (Content Types). This is made possible using one of Drupal's PDF viewer modules - PDF module for D9/D8: https://www.drupal.org/project/pdf. Other useful options for Drupal PDF viewer modules here - Comparison of PDF viewer modules: https://www.drupal.org/node/1781960 We deploy a lot of Drupal websites and projects https://www.ibuild.ph/drupal and we always find the PDF module a very helpful feature. I hope this helps! Any questions, just post comments below.