Connecting my ipad to the PC first time in a year will it blank it?

[therealriley]

Hi all, ive just bought a pc and i need to hook my ipad up and finally back it up. Ive never done a back up because i did not have a pc and icloud did not have enough space to perform a back up. So its absolutley vital i dont lose my in app files/info when plugging it into itunes for the first time. I need to back up everything so will itunes try to sync this and blank it all together or will it allow me to back up first?