Convert your image to PNG with this free online image converter. Upload your image and select between various filters to alter your image and apply digital effects. png converter. 1  Upload your image you want to convert to PNG:  Or enter URL of your image you want to convert to PNG: (e.g. http://bit.ly/b2dlVA)
According to my calculations the average size of a piece of computer paper is approximately 8.5 inches by 11 inches. best to go to a printer shop, save your image to a disc or sd card, look up the number for a local printer and call to find out how much they will charge, A3 paper will probably be large enough.
The international paper size standard is ISO 216. It is based on the German DIN 476 standard for paper sizes. ISO paper sizes are all based on a single aspect ratio of square root of 2, or approximately 1:1.4142.