Simple Watermark and upload program

Hello, I have 1.9GB size in total .flv extension ADULT videos need to insert a jpg watermark on each video in their top right corner. You job is to insert the watermark into each video, no quality change and remain same filesize, same extension, then upload to [login to view URL] I will provide you my server account, megarotic account information for download/upload purpose. Total 1426 files (.flv) around 10MB each video.