Personalize larger products.

We want to be able to personalize larger products such as posters or photo-paintings I saw that some users complained that the plugin is not adapted to such solutions. We will have photo displays up to 70 × 100cm and 50x120cm + bleeds and A0 84 × 120cm. I am asking for a message or the possibility of personalizing such large products and subsequent automatic receipt of the appropriate pdf without losing the quality of files sent by the client (and without having to edit the file in other programs, which would significantly extend the time of the order) .