1. Use professional design software: use graphic design software (such as AdobePhotoshop, CorelDRAW, etc. ), you can create a graphic with a ten-character border and import it into the certificate design. You can adjust the size, color and style of the border as needed.

2. Use online design tools: Some online design tools (such as Canva, DesignBold, etc.). ) provides a wealth of border templates, from which you can choose a ten-character border style and make custom adjustments.

3. Find ready-made border resources: Search the material of cross border on the Internet, and there are many free or paid border templates to choose from. Download the appropriate border image and add it to the certificate design.