Cardmarket only allows one photo per listing. TCG-Pics combines the front and back photos of a trading card into a single, high-resolution collage in about 9 seconds, so buyers can check the condition of both sides.
Free, no watermark, works on phone and desktop. For Pokémon, Magic: The Gathering, Yu-Gi-Oh!, Lorcana, One Piece and other TCG sellers.
How to sell Pokémon cards faster on Cardmarket