Better compression for pptx created from a template model
Either for PowerPoint for Windows 10 or Office 365 for business;
I found that a model is kept as is when a pptx file is created from a template potx file. This can make documents much more heavier than they should be, when copied every-time as a starter for reproducing documents.
If the user stays conform to the concept, He/She would always use templates (potx files) for pptx generation, and not other pptx files. This can be less productive, but way more efficient (general performance / digital carbon footprint).
A trade-off could be to offer on saving a document to disk, an option to weather keep or not slide models, when a user "sign" a document for example, there is definitely no need to keep any non visible elements (media files in the pptx).
Abderrahim Benseguane [Data Solution] commented
Please excuse my typing errors:
an option to whether (weather*) keep or not slide
when a user "signs" ("sign"*)