1, first open the PS software, and then drag the font of the picture that needs to export the vector diagram to the main page of the software;

2. The example is shown in the figure;

3. Open Select > Color Range in turn, set the dyeing tolerance to 200, and click OK;

4. Then, you will find that the font of the picture is deselected. At this time, press the shortcut key "SHIFT+CTRL+L" to cancel the selection again, and the font is selected;

5. after selecting a font, click path > switch from selection to working path in turn, as shown in the figure;

6. then click file > export > path illustrator;

7. Select the file location where the font is saved, and the export of AI vector is completed.