Lightroom export settings determine how your edited photos are saved and shared outside of the software. When exporting, you can customize several key options:

1. File Format: Choose from JPEG, TIFF, PNG, DNG, or Original. JPEG is ideal for web sharing, while TIFF is used for high-quality prints.

2. Image Size: You can resize images based on dimensions (pixels or inches) or long edge/short edge. This is useful for preparing photos for specific platforms or print sizes.

3. Resolution: Measured in pixels per inch (PPI), typically set to 300 PPI for prints and 72 PPI for web use.

4. Quality: For JPEGs, you can adjust the quality (0–100). Higher quality means better image clarity but larger file size.

5. Output Sharpening: Lightroom offers sharpening for screen, matte paper, or glossy paper, depending on where the image will be viewed or printed.

6. Metadata: Decide how much metadata (like camera info or location) to include or exclude.

7. Watermarking: You can apply a watermark to protect or brand your image.

8. File Naming & Folder Location: Customize how files are named and choose the location for saving them.

Proper export settings ensure your images look their best in their final form, whether online or in print.