online poster creator for online sale

I am looking to hire an experienced freelancer to create an online poster creator for online sale. The main objective of this project is to create digital posters, and the poster creator will not be print ready. This project requires outputting in PNG format. The poster creator must be user friendly and customizable to the users needs. Experience in design software is essential in order to deliver a high quality result. The completion of this project meets the quality and functionality my company desires, and I look forward to hearing from to an experienced freelancer.