Watermarking in iPhoto or Aperture
I would like to watermark my photos in either iPhoto or Aperture, and all the solutions I have found requires that I "export" the photo. I dont want to do that because I am afraid having duplicates of hundreds of photos. How do I avoid this?
Or should I be uploading my photos in a completely different system, I just really like how these programs organize the photos and I dont want to lose that organization.
Thanks
Aperture 3