PNG – Preferred because it supports transparent backgrounds, perfect for clean edges and no unwanted white box around the design.
TIFF – Excellent for high-resolution, lossless quality, often used for detailed or large designs.
PSD (Photoshop) – Useful when keeping editable layers for future edits before exporting to print.
PDF – Sometimes used for vector or multi-page designs if all layers and color profiles are properly set.
Always create artwork in high resolution (at least 300 DPI) and in the CMYK color mode with a white ink channel if required.
