But the players injuries were a constant problem whilst with the Reds, but Partridge will now have six months during which he can try to impress officials at the Owls.
The players agent, Neil Sang said Partridge was delighted with the deal.
"Ritchie's signed a six-month deal. And we'll be looking to extend it. Ritchie's excited. Sheffield (Wednesday) are a massive club and he's really looking to push on. If his performances are right at this level then it's looking good for his career."