How to make calligraphy and painting smooth?

I took a lot of pictures. The easiest and cheapest way is to hold it down. Just find something heavy and hold it for a while.

Now separately:

For Xuan paper, say cooked Xuan first. The reverse side of the painting can be sprayed with flowers, and the reverse side must be sprayed evenly and higher, so as not to make the painting flat after a while.

If you have a porch, you have to hold it down.

Sketch paper is also suitable for spraying water. If you want to stay away, you can only spray a little and then press it immediately, otherwise the drawing paper will wrinkle when it absorbs water.