Drukowane OCR and other 86,400 icons from Icons8 icon pack follow the visual guidelines of the operating systems: Windows, iOS, Android KitKat, and Material. PNG format is free up to 100x100 px. Icons are availble for download in PNG and vector (SVG, PDF, EPS, and more).
Two straight lines meet at a 90 degree angle. There are four sets of these; one with the legs pointing down and right; one with the legs pointing left and down; one pointing up and left; one pointing right and up; to create a frame. Inside the frame is the letter "A".