Slide-Synced Video Editing

I have three screen-recorded MP4 videos accompanied by a 20-slide PDF deck. Each video covers one training day, and I now need them polished into viewer-ready lessons.

Here’s what I’m after:

• Clean audio – remove the constant heater and laptop hum without making my voice sound tinny or over-processed.
• Tight cuts – snip out retakes, obvious mistakes, and those long thinking pauses so the flow feels natural. (I've done most of this already, it will be double checking and fixing)
• Precise slide sync – match my narration to the correct slides and cue each change at the right moment. (I'll provide PDF with exact script to match)
• Picture-in-picture – show the slides full-screen and overlay my talking head in a circular bubble, top-right. The slides already leave space there, so the bubble shouldn’t obscure any content.
• Simple style – a subtle fade between slides is all that’s needed; no special animation templates.
• Final delivery – three separate, exported videos (one per day) in the same resolution as the originals.

Please ensure the finished files play smoothly on common platforms. When sending back, please include both the rendered files and the editable project files so I can make minor tweaks later if necessary.

If this sounds straightforward to you, let me know how quickly you can turn it around and any clarifying questions you might have.