I have collected some photos from internet. I want to print them but the problem is that there is a signature of photographer in the photos. I want to remove those signatures. How can I do that?
To echo the words of others, I cannot and will not help you here. You are asking for knowledge on how to remove a copyright owner's SIGNATURE from THEIR WORK. Sorry, but that's wrong. If you want a signature-free copy, you should be contacting the owner of the work to see if they will offer you the right to purchase a COPY — however it is up to them whether they give you that copy without a signature or watermark or not.
This site is run by photographers, artists, some of whom have had their work stolen in the very way you are asking about. You won't get any help here, and to be quite frank...I can only hope to God you don't get any help anywhere else. Sorry.