What poster size works on the street?
On the street, the size that works is the one that reads at the real distance of your pavement, not an A4 because it fits the home printer. On a wide window, an A3 or larger with few words; on a narrow door, less surface and a larger body.
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Measure the gap and the distance from where people walk. The miss is an A4 of the whole menu stuck on a busy doorway. The file comes out at the size of that gap, with a scale print to look at from the pavement.