Can I upload Screen Recording to Youtube?

I have been using youtube for a long time now. Just recently I bought my first Mac. I am wondering if I can screen capture/record software such as Final Cut Pro, Photoshop, and Pixelmator. I know that there is a lot of other Tutorials of these software programs already on Youtube but I'm not sure if they email the companies or put disclaimers or how they do it. In the comments they usually only have a link to the software and thats it. I really have some good info to share and want to post these tutorials. Please help me as soon as possible!