Thank you for your support.
MacOS provides a built-in "create PDF" option in the right-click context menu, which might be the thing you found in the how-to video.
We've received some feedback about adding features to the right-click context menu on Windows. We've built this before, but the frequent changes to the right-click context menu from Microsoft are making it unstable. When we can guarantee its stability, we'll provide it in an update. Thank you for your patience.
If you need to batch convert JPG to PDF or PNG to PDF, we recommend using the PDFgear Image to PDF converter, where you can add multiple image files (both JPG and PNG are supported) to batch convert.