How long can the words written with a pen remain on the paper?

The main component of the ink pen is carbon. We know that the volatile nature of carbon is very slow. Therefore, fonts generally have a longer retention time. That’s why it’s suitable for calligraphy and freehand brushwork.

There is no specific number for the shelf life of calligraphy, but in short, it will not change within three years (if you save it carefully)