Create a white border for your photo in Lightroom Classic

Before you can Develop photos with a white border in Lightroom Classic, you need to create the white border first. Follow the steps below to do this.

1. In Lightroom Classic, choose a photo.
2. Crop the photo based on your desired Instagram aspect ratio (4 x 5, 1.91 x 1, or 1 x 1).
3. Go to Print.
4. Go to Page Setup > Paper Size > Manage Custom Sizes.
5. Add your own custom page setup.
6. Replace the width and height with the aspect ratio (4 x 5, 1.91 x 1, 1 x 1).
7. Name the custom page setup with the aspect ratio.
8. Do the same with other aspect ratios.

References

Phil Ebiner. (2017, August 19). How to Easily Add a Border in Lightroom. https://www.youtube.com/watch?v=oHnG6xEnsrY