

The same is true for Windows Explorer available inside XP as well as Vista. For a completely different take on A4, watch the amazing YouTube video.When you open any folder inside Windows Explorer (Win+E), it will display the size of individual files contained in that folder but you won’t get to know about the size of various sub-folders that are located inside that folder. Other sources of informationĪn elaborate yet easy-to-read page on the ISO 216 standard can be found here. In North America the Letter paper size (216 × 279 millimeters or 8½ × 11 inches) is used instead of A4. I’ve had excellent results with my six-megapixel Nikon D70. A somewhat lower resolution is still fine. This is the minimum resolution for newspapers or posters viewed from a fairly short distance.Ī digital camera with decent image quality and a resolution of 8 megapixels or more can be used to print high-quality A4 size pictures.


Resolution needed to print an A4 size picture The dimensions always get rounded to the nearest millimeter. The height/width ratio remains constant for all sizes: 1:1.41 or the square root of 2. This way a range of paper sizes is created from A0 (which has a surface of one square meter) to A10. Two A4 pages next to each other in a spread equals the A3 paper size. By folding an A4 in two along its shortest side, you create an A5 document.
