pdf转的有问题吧，用ieee express试试了

When you use a language to write the doc document (Chinese) and you submit the doc perhaps what happened is that you still have residual Chinese characters in your document, so the pdf software is telling you to include the fonts. But it's just a guess. To tell you for sure you will need to show me the screen with the error (I suppose in English, please). Difficult to say otherwise，

估计是转换成pdf前的word文档中的字体不全是西文字体，这些到了编辑处可能存在乱码了。