Still Images and Video with REAPER
From Help Wiki
REAPER can do basic editing of still images and videos to create simple slide shows to go along with the audio tracks.
Project Settings
- Go to File > Project settings.
- click the Video tab.
- Set the Frame rate to 30
- Set Preferred video size to 1920 x 1080
- Uncheck Always resize video sources to preferred video size
- Check Always resize output to preferred video size
- Check Use high quality filtering when resizing
- Check Preserve aspect ratio (letterbox) when resizing
- Click OK