Watermarks are the best option to save the illegal circulation of pictures and they can be easily added by photo editing softwares like Photoshop or Corel but in case you want to do it online then there is a site Picmarkr which enables to add watermarks online by just uploading the pic.

Below is the screenshot of 1500 MegaPixels pic which can be clearly viewed on Docbert.org/MP/. You can actually see how clear is the pic. According the photographer, he carried over 10 Kg of camera setups to capture this amazing view.

On October 4, 1957, the world’s first man-made satellite zipped across the sky. Russia’s 183-pound probe circled the Earth every 98 minutes, invisible to the naked eye, broadcasting it’s rhythmic beeping to anyone with the equipment to listen.
Sputnik’s launch 50 years ago marked the dawn of the space age, and the starting gun of a […]