If you bought it from Biz-Logo:

We deliver your logo in a couple of formats, including the original vector art work. To edit the vector file directly, you will need vector graphics software installed on your computer. Something like CorelDraw or Adobe Illustrator.

You can of course also edit any of the other files that we deliver the logo in. If you need it in a specific format (like a layered PhotoShop file), please ask. There is no extra charge for extra file formats.

If you did not buy it from Biz-Logo:

If you did your logo yourself or hired someone else to design it for you, Biz-Logo can still take care of any modifications or improvements you need done. Please have a look at our logo repair service.