Overlay video in another video?

I am trying to overlay a video of me discussing slides in one of the corners of the video.

like professor messer teaching comptia a+top -right of video
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Paul SauvéRetiredCommented:
it's a lengthy process and takes timing...

basically you need 2 videos - one of the slides and the other of you narrating (in which the frame size needs to be a lot smaller).

for this you will need a Screen Session Recorder - some suggestions can be found here: http://www.techsupportalert.com/best-free-screen-session-recorder.htm

then you have to make sure that the narration is in sync with the slides.

the final step is to overlay the narration video on top of the PowerPoint video.

this step requires a video editor: I use a paid version of AVS4YOU Video Editor, but here is a list of free software from Gizmos Freeware:
Best Free Video Cutter and Joinerhttp://www.techsupportalert.com/content/best-free-software-cut-split-or-merge-video-files.htm
One software that can do that is Camtasia:

You can record the screen and later you can process that recording by adding another video inside or narration or comments or zoom.
Or you may try some free alternatives:

After you recorded the screen with one of the above and you recorded your narration with a webcam, then you may edit, overlay with one of the next software:

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Rajul RajInformation Security OfficerCommented:
Camstasia studio will be the best one for your needs
Rowby Goren Makes an Impact on Screen and Online

Learn about longtime user Rowby Goren and his great contributions to the site. We explore his method for posing questions that are likely to yield a solution, and take a look at how his career transformed from a Hollywood writer to a website entrepreneur.

Shaun VermaakTechnical Specialist IVCommented:
I recommend Screencast-o-Matic (http://screencast-o-matic.com/). It does this seamless
dbruntonQuid, Me Anxius Sum?  Illegitimi non carborundum.Commented:
Also DaVinci Resolve https://www.blackmagicdesign.com/nz/products/davinciresolve

There is a free version to download.

Warning!  This is an extremely powerful application that likes lots of horsepower and fancy graphics cards.  Plenty of tutorials on how to use it on YouTube.

See https://www.youtube.com/watch?v=qibjkyFoMho for a very brief tutorial on video in video
Shaun VermaakTechnical Specialist IVCommented:
Glad we could help.

@OP, experts and future visitors:
Please remember to endorse my, or any other expert's comments that you found helpful by clicking on the "Thumb's Up" button

Read more on endorsements
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.