Hello. I am a professional photographer and have been teaching photography for over 30 years. 98% of people I run into do not know how to properly watermark images. Which makes the images less enjoyable and/or easily high jacked anyways. In general, I doubt most people need to watermark images but there are occasions when it becomes necessary. About the only time I watermark images is when I am sending them to a publisher for review. Get a copy of a free watermark software program - there are many out there. This allows you to overlay the entire image with another image. Note - overlay the entire image! Putting your name or logo in a corner of the image is very lame and easy to work around. You have control over how opaque, obvious the 2nd image will be. Make it light, barely there so as not to detract from the viewing experience. But, just enough to make the image unusable as is. For the 2nd (over laid) image go to Google pix and get a large copy of a grid of lines. You might have to reverse it ( create a negative from it.) Overlay the image you are trying to protect with a light grid of lines. Works well. I can post an example if asked. Gene
