+A4 is a common [paper size](/wiki/paper-size) defined by the [ISO 216](/wiki/iso-216) international standard. Widely used across the world, it provides a consistent canvas for documents, printing, and written communication. Its precise proportions ensure an elegant aspect ratio.
+## See also
+- [Paper](/wiki/paper)
+- [Dimensions](/wiki/dimensions)
+- [Printing](/wiki/printing)
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