I have some how-to videos to make. All about editing PDF on iPhone using Wondershare PDFelement for iOS ([url removed, login to view]). The video length is around 1 minute. The contents include:
1. intro (I will offer you the clip)
2. video recording (show users how to use it)
voiceover is required. And in important steps, a subtitle is needed.
3. outro (I will offer you the clip)
Here's a sample: [url removed, login to view]
If you are interested in this job, please contact me.