How can a (non licensed) user export selected columns which also shows pictures?

We have users that need to export (or print) a sheet, but only certain columns, which also contain pictures. When exporting to Excel, the user loses pictures. When exporting to PDF, the user can't select the columns they want (they can't hide them either). They can select columns in Gantt view mode, but in that case, the pictures don't show in the exported PDF.

Pls note, I can do those things as a licensed user, but I'm asking this for our external users, who as per SmartSheet T&C, we're not allowed to give a license.

Thank you