Help! How do you guys put text onto your pics like your seller name on Ebay pics?

[GUNG]

You know..when someone doesnt want their pics to be stolen, they put text of their seller name directly onto the picture. How do you do that? Im so computer stupid!

 

[CynthiaNYC]

I do it in Photoshop when I edit my photos, but a lot of people use irfanview (free software) for watermarking.
It's not a stupid question!

 

[Swanky]

please see the Watermarking thread in Feedback Dropbox, TONS of amazing advice there