Is there such a thing as filing a chin down? (Photo)

Thank you for your picture. Your profile looks pretty good. To answer your question, your chin can be reduced by removing and contouring the bone or using a sliding genioplasty to reduce the prominence. I would strongly recommend that you see a board-certified plastic surgeon or a board-certified facial plastic surgeon for a complete the evaluation before embarking on a chin reduction. Best wishes.

Chin reduction can be done by a variety of methods including filing. (bone shaving/burring) But one has to be careful with any form of intraoral shaving of the chin bone as it is prone to causing chin pad sagging or ptosis.

Yes - "filing" the chin bone is a possibility, especially if you need a small amount of bone removed.  Your chin looks good - perhaps slightly over-projected (but tough to tell since your photo isn't a true lateral photograph), and it may be a good option for you.  See a board-certified plastic surgeon who has experience with bone surgery to discuss your options.