The purpose of creating a White and Soft Orange Lost Dog Poster is to help locate a missing dog. The poster provides information about the dog, including its physical characteristics, location where it was last seen, and contact details for the owner. The bright colors and bold text make it eye-catching and easily noticeable to passersby, increasing the likelihood of someone recognizing the dog and reporting its whereabouts. The poster aims to spread the word about the lost dog and enlist the help of the community to bring the dog back to its owner.