Adding kerning to the basic text rendering algorithm is easy: When a kerning pair is found, simply add the scaled kerning distance to the pen position before step 4.

• This gives us: 在基本文本渲染算法上增加字距调整非常简单，当一个字距调整对发现了，简单地在第4步前，将缩放后的调整距离增加到笔位置即可。