Without any doubt, the best way to protect the authorship of your Internet photographs (and thus avoid being used continuously by others without your permission) is to add discreet, elegant and professional watermarks.
And that is exactly what Bytescout Watermarking PRO does, which allows you to create a watermark (which stands out above all for its simplicity and elegance) with the text, annotations or logos you want to include, so nobody can doubt the authorship of said photograph, without at any time losing any image quality.
Bytescout Watermarking PRO allows you to work with JPG, PNG, TIFF and GIF formats, being able to add special copyright characters (©, ®) in the texts, as well as being able to batch process images.
You can free download Watermarking PRO 32, 64 bit and safe install the latest trial or new full version for Windows 10 from the official site.