Resize Image to A3 Size — Print Ready
Quick Answer
A3 paper at 300 DPI is 3508x4961 pixels. Resize your image to this size with FileCurve for print-ready A3 posters, presentations, and design work.
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Frequently Asked Questions
What is the pixel size of A3 paper?
At 300 DPI: 3508x4961 pixels. At 150 DPI: 1754x2480 pixels. A3 is exactly twice the size of A4.
Last updated: April 2026