How to strengthen the text in the picture and make it more clear?

If you want to make the text clearer, pay attention to "a little". According to personal experience, use Photoshop? There are several ways to share:

1. Is it white paper for scanning? Use levels or curves to enhance contrast. White (paper) is whiter and dark (text) is darker. Do not refer to the following parameters.

In fact, as above, it is also a strong contrast. Optional color, choose to output white, reduce black below; Then select black and add black below. Do not refer to the following parameters.

3. Sharpen properly.

The above three methods can be used together to make up for each other.

You said some words are illegible, and you want to make them clear:

1. You can only enter it directly with the text tool.

2. Your original documents should be clear and your scanning equipment should be good.

At present, there is no equipment or technology that can make vague things clear.

If I can help you, I still hope to adopt!