Hi guys.  Relatively new to Odoo.  I am conscious of how quickly the database / file store grows.  Ours isn’t a problem at the moment - but I’m thinking of a couple of years down the line - so want to get on top of it from the start. 
Looking through the attachments, it’s seems to mainly be pdf files from when we have emailed a job or invoice to a customer. 
 
My question: 
I assume there is no harm in just simply deleting these pdf files?
Can anyone reccomend an app that would automatically delete alll pdf files that are older than 2 months for example?
Or a way to not have them saved in the beginning?I have the email templates set on auto-delete. But this doesn’t solve anything as the emails and their  attachments still show up on the sale order page ( or invoice page , delivery page etc... ) and the attachment is still stored. 
any help much appreciated. 
Kind regards
Sion.
