Decode Footer Link

i have a free theme on my wordpress. but it have links on its footer. and when i see its footer.php i see only like this..:

<?php eval(stripslashes(gzinflate(base64_decode("dVLLboMwEDwTKf+wyqEhF7g3lKh/UCWRqkpIyOAltgQY2U5IpH58/YBAk5YL652dnd2xd+lyAbNvOiUx5ZcBHePlIkhMBJy+ZatC0Fsu+YnpbDXrMhUoTrEgMidUmYpk17EOeBVW57bUXLQ5XrnSKszWmmGDtixXTPTZerOB36lws4VdOk4RBE开发者_高级运维8ayo0QGMSpnFDnA+KpjjTSp23G6PFvortCJYRG6fs/ZnON19n2L6XoblvwM2DJBFCiMfxyI0BCfI5JrEwHX1XU4sTbShgXzrI2q9vSu1sztCUNDnASkzQCeK9r2Fv7FexRobwgjeAbjtY5+JDiYgygUNzc7mSUZVp3r3Hc933UdxobwlvKZVSKxqh+Ckk7iUrB0SBWxzT8l69EWxBGJG8G+gFVzeEgWIHakp0tz966hm6/vsu9keMt/XkprtQ/CN1zbX2fHoVn2LfoKEw3tTHvBw==")))); ?>

how can i remove these links and add my own link over there???

Like others already pointed out in the comments, the author of the theme apparently tried to prevent you from changing the footer on purpose. You have to check with the theme's license agreement or contact the theme's author whether you may remove the copyright notice. Just because you did not have to pay for the theme, does not mean you may modify it. It says "All rights reserved" for a reason.

You can see the actual footer code by not evaling but echoing it, e.g.

echo stripslashes(gzinflate(base64_decode("dVLLboMwEDwTKf+[...]THvBw==")));

This will give you the footer's PHP code. If you are allowed to modify this code, you have to replace the original footer code with the modified version.

Sidenote: both the footer div and the div it contains have IDs, so you could just as well hide the links with CSS. That would be less invasive, though it doesn't change that you should ask for permission first.

it happened many times that this kind of encrypted footer contained malware. so, everybody should be instructed to decode it.

generally speaking, encryption is not a way to stop piracy. good quality themes and good business model are a way to limit piracy (just look at themeforest and their business model that's actually working)

thank you and sorry if I'm OT