2. Click the "Download Now" button in the opened website to download and install the software.
3. After the installation is completed, double-click the "Love Clip" icon on the desktop.
4. After opening the software, click the Video tab, and then click the Add Video button.
5. In the open interface, select a video and click the "Open" button.
6. At first, I saw that the video was horizontal.
7. Click the Picture Style option, and then click the Free Rotation option.
8. Click the Add Style Effect button, and then select the Add Style to Current Clip option.
9. Change the angle to "90" and click "Confirm modification". At this point, you can see that the video has become vertical.
10. Finally, click the Export Video button to export the video.