Other people's calligraphy wants to make it bigger and show it. Is there any way?

It turned out that the mayor visited our unit and wrote an inscription, which was as big as A3 paper. Let me enlarge it. The method I use is: take photos-print-draw on rice paper by hand, and enlarge it to about 1 meter. The effect is not bad. This method is suitable for regular script, official script and other fonts, but it will be more troublesome if it is cursive. Better be on camera!