Kim Kardashian -- Making Money ... Even on Her Wedding Day

Kim Kardashian doesn't do anything for free (get your mind out of the gutter) so it only figures her wedding day would be a HUGE pay day for Kim K.

People magazine won the bidding war for exclusive wedding day photos, says The Hollywood Reporter, to the tune of $1.5 MILLION.

The trade says Kim and hubby-to-be Kris Humphries also raked in $300,000 for the engagement announcement back in May and $100,000 from OK! mag for bridal shower pics.

We thought weddings were supposed to cost money?