Linux shell doc conversation and OCR + Yii (need to continue development) for live website

Hi, My live file conversion website is running fine but some conversions has minor problems. need to fix it immediately. I am searching for a linux shell cmd expert with yii framework who can fix the minor issues. it's a two-three hours job who knows linux shell. Please apply this job only you have experience in this type of website making. this is my website [login to view URL] Waiting for your reply.