After installing swift video merging and splitting software, double-click the desktop icon to run. The following figure shows the main interface of the software. We can see that there are three buttons on the left, the first is the cut function, the second is the merge function, and the third is the add theme function that we will use today.

After clicking the third button, we will add a video file with a title to add. Click the "Add File" button at the bottom left of the interface and select the file to be added.

The next step is to choose the theme. There are three themes: "science and technology, scenery and New Year's Day". We can choose one at will, fill in the title, conclusion and author's signature, and then click "Preview" to see the effect!

After previewing the effect and confirming it, you can export the video. Click the "Start" button in the lower right corner to pop up the output window.

Then we set the saving directory and video resolution of the output file here. Finally, click OK. The file can be found in the output directory after the output is successful!

The above is a tutorial on adding titles to MP4 videos compiled by Bian Xiao. I hope it will help you edit the video!