Many printers have the ability to select a custom image size and print a tiled image on separate sheets that you can stick together. Another option is to project the image.

Doug

It depends on your printer app. Many printers allow you to choose the size of the printout and if it exceeds the paper size it prints as a number of “tiles” often
with overlap marks. I have done large 4ftx3ft maps using that method, using Microsoft Publisher, but only on my laptop.

Your best option is to take it to a Staples or similar store and get an enlarged print.

Doug