A3 Poster Template May 2026

Understanding the physical and digital dimensions is critical for high-quality printing and layout design. Measurement Unit Dimensions (Width x Height) 297 x 420 mm Centimeters (cm) 29.7 x 42 cm Inches (in) 11.7 x 16.5 in Printing Surface

8,709 A3 Poster Royalty-Free Images, Stock Photos & Pictures A3 Poster Template

Go to Layout > Size > More Paper Sizes and manually enter 297mm x 420mm. Alternatively, search for "Posters" in the template gallery. 709 A3 Poster Royalty-Free Images