Question: how to change vpj to mp4?
Answer: Step 1 Double click on the VPJ video's icon to open it in VideoPad Video Editor. Step 2 Drop the VPJ video to the timeline or you can't export it as MP4. Step 3 Click on “Export Video” in the top toolbar, select the option “Video File” and then, “I Will Purchase Later” if you use the trial version.