How do I add a digital avatar to the upper right corner? The method of increasing the red digit in the upper right corner of micro-letter head

Here we use the simplest image processing tool for beauty Mito.

After opening the "Beauty Mito", we clicked on the text editor's entry as shown in the following image to begin editing the text.

Then we switch input method, such as enter a 0, select red, the size of the custom.

Then we enter a number on the circle, remember that the number and the background color of the circle can not be the same OH.

Micro-letter Avatar in the upper right corner of the number to add success, and then we upload the photos to the micro-letter as a head you can

Well, besides this method there is another way is to use PS to operate, this is the same addition, of course, we can also change the number of other Oh.