1. Size: The dimensions of an A4 sheet are 210mm x 297mm while the dimensions of an 8K sheet are 240mm x 340mm. An 8K sheet is therefore larger than a standard A4 sheet.
2. Origin: A4 size paper is commonly used in Europe, Africa, and Asia, while 8K size paper is commonly used in Japan.
3. Aspect Ratio: The aspect ratio of A4 paper is 1:1.41 while the aspect ratio of 8K paper is 1:1.42. This slight difference in aspect ratio can result in slightly different visual appearance when printed.
4. Usage: While A4 paper is commonly used for printing documents, 8K paper is mostly used in commercial printing applications such as for booklets, magazines, and catalogs.
5. Availability: A4 paper is widely available globally and can be purchased in most stationery stores, while 8K paper may not be as readily available outside of Japan.
In conclusion, despite both being used for printing purposes, A4 and 8K sheets differ in size, origin, aspect ratio, usage, and availability. While A4 paper is commonly used for printing documents, 8K paper is mostly used in commercial printing applications such as for booklets, magazines, and catalogs due to its larger size.
