To optimize a photo for engraving on wood, follow these steps:

1. Select the Right Image: Choose a high-contrast photo with clear details. Simple images with defined lines work best.
2. Adjust Image Size: Resize the photo to the dimensions of the engraving area. Ensure it maintains a good resolution (300 DPI is ideal).
3. Convert to Grayscale: Use photo editing software to convert the image to grayscale. This helps simulate how the engraving will appear.
4. Enhance Contrast: Adjust the brightness and contrast to enhance details. Increase contrast to ensure light and dark areas are distinct.
5. Simplify the Image: Consider using filters or tools to simplify details, reducing complexity while keeping the focal point clear.
6. Apply Sharpening: Use sharpening tools to bring out edges and details before engraving.
7. Test with a Sample: If possible, run a test engraving on a similar piece of wood to see how the image translates.

By following these steps, you can ensure the best results for your wood engraving project.