These are standard methods to add a trademark symbol to any program on your computer. They are built-in into your operating system and available in every program you have: Word, Picasa, Visual Watermark and all others.
International law protects your copyright but the law also requires a clear evidence of your authority and can do nothing with people who don’t understand copyright. You will have to prove your authority in a court before you can make a claim. If you fail to proof your copyright ownership, you won’t be able to get pay for a stolen work and will have to pay court dues. Ensuring the best copyright protection for your work relies on 4 factors: