The image of a PDF document is completely incomprehensible and overwritten with

Hi Riccardo,
Thank you for your message.
Regarding the issue where clicking the button to view a PDF document shows a series of HTML fields instead of displaying the pages correctly—this might be caused by an issue of PDF Viewer tool

To help you fix this as quickly as possible, please submit a support ticket under the "Edocman" category and include the following information:
- Your website URL
- A Super Admin account so we can access the backend

Once we receive the details, we’ll check and resolve the issue promptly.
Best regards,
Dam

Thank you as always for your availability and quick response. I have now created the ticket according to your instructions. Thank you and have a nice Sunday!