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pornel
on Sept 5, 2022
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Why A4? – The Mathematical Beauty of Paper Size
Mass printing isn’t done on A4 directly. It’s done on printing machines of a larger size and then cut and folded as needed.
thrdbndndn
on Sept 5, 2022
[–]
I get that, I'm saying that precisely will make the size of a single page (A4 or letter) or its ratio irrelevant in practice.
tankenmate
on Sept 5, 2022
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parent
[–]
The benefit for A* and B* sizes is that you can buy a roll of A0 or B0 and then print directly and then you can cut to any A* of B* without any offcuts.
For documents that need bleed to edge you have RA* and SRA* sizes.
Consider applying for YC's Fall 2026 batch!
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