This was far from unusual. Once Powerpoint appeared the mass mailings with images etc. poured into company systems. At LargeCopierCompany it was common the get mass mailed an announcements of birthdays, engagements, pregnancies, closing of the toilets for maintenance etc. etc. etc. Even today sending a space-hungry PDF, often containing a scanned image of a text announcement, will routinely appear when a simple text e-mail would have been enough.