我试图在HTML中嵌入base64图像，然后将其转换为PNG，正常图像工作正常但如果我将src设置为base64字符串则在我的pdf中显示损坏的图像：
https://gyazo.com/7c86e05373b165840225e931cf5975c9
这是我要发送的图像字符串的示例，在html中正常工作，在转换为pdf后损坏。
<img id="fmacttcChartPNG-PullUps" src="data:image/png;base64,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">
是否有人知道这是否受到支持或对正确的方向有任何想法继续进行此操作？
谢谢，
萨姆