Batch Photo Watermarker is a software which allows you to add watermarks to your images and protect the rights.
It allows you to add Images, Text as watermarks on the images. You can add even diagonal lines to make it more secure from copying. As the name says this can process a batch of files, which will save a lot of time.
Add customizable text watermark
Keeping EXIF information
Save templates for future
input formats supported - .JPEG, TIFF, BMP, PNG, GIF, PSD, GFI, SGI, TRUEVISION, PAINTBRUSH, KODAC, SGIW, PSP, JPEG2000, BW, FAX, RGB, RGBA, SGI, TGA, VST, ICB, VDA, WIN, PCX, PCC, PCD, RLA, RPF
Read more and get the software worth $29.50 for free just today from here
You can either like their Facebook page (you will need a Facebook account) or will have to complete a survey to get this license for free.