Scripting and Automation (meeting prep)

When specific types of meetings are scheduled on my calendar, I need a pdf automatically generated and sent out to members of my team that is also included on the calendar invite (but excludes the customer) via Slack message 24-48 hours prior to that meeting occurring (I'd like to be able to adjust the time for how long before that the pdf will be sent out). I'll provide the freelancer for this project with a sample output of what the pdf data should pull from and include. Before the pdf goes out at first, I'd like to review the document and have the ability to make edits before approving it to send out. Upon building and automating this process, I'll also need you to teach me how to accomplish this so that I may modify this in the future, and can build similar projects on my own.