Flattening paper is the process of removing wrinkles and creases from paper to make it smooth and even. This can be done for a variety of reasons, such as making the paper more presentable or easier to work with. There are a number of different ways to flatten paper, and the best method will depend on the type of paper and the severity of the wrinkles.
One common method of flattening paper is to use a heavy book or other weight to press down on the paper. This can be effective for removing minor wrinkles, but it may not be sufficient for more severe creases. Another method is to use a clothes iron on a low heat setting. This can be more effective than using a weight, but it is important to be careful not to scorch the paper.