A7 paper is a small paper size that measures 74 mm by 105 mm, or approximately 2.9 inches by 4.1 inches. It is part of the A series of paper sizes defined by the ISO 216 standard, which is widely used around the world. A7 is often used for notepads, small flyers, and other compact printed materials. This size is one-eighth of an A4 sheet, which is the most common paper size used in offices and schools. A7 paper is convenient for carrying in pockets or small bags, making it ideal for quick notes or reminders.