Adding a photo to someone else's page

Using google search on the title of your post (adding "imdb.com"), here's a concise (and still current) answer to your question:
https://getsatisfaction.com/imdb/topics/how-do-i-add-a-photo-to-someone-elses-profile

To add an image to a person's name page gallery requires an IMDbPro subscription and a claim for that name page. This is an effort to protect a person's photo gallery from unwanted user-uploaded images. If you already claim a name page then you will not be able to use that same subscription/claim to upload images to anyone else's name page.

Adding images to Title pages is open to anyone with an IMDb account, and those photos can be tagged with links to name pages. Then if someone does a google search on images for a person, they'll likely see that image (if the person has only a few images.)

Hi, Vince Maslowski. The simple answer is that: Unless you have the right (or perhaps, privilege) to claim somebody's IMDb name page, you would not never be able to add removable content to image gallery associated with that page. You have to be either (1) that person, (2) the legal guardian of the person, (3) an agent [somebody dutifully acting at the behest] of the person, (4) the fiduciary of estate of the person [if deceased], or (5) a legal heir of the that person [if deceased].