PDFLaTeX 中是否有一个选项,如果在输出 PDF 中发现任何隐藏文本超出文本区域或与文本区域内的文本冲突,则抛出错误/警告,如红框中图片所示。
\documentclass{book}
\usepackage{graphicx}
\begin{document}
This is the sample to find hidden text. This is the sample to find hidden text. This is the sample to find hidden text.This is the sample to find hidden text.
\begin{figure}
\includegraphics{tri.pdf}
\end{figure}
This is the sample to find hidden text. This is the sample to find hidden text. This is the sample to find hidden text.This is the sample to find hidden text.
\end{document}
下载:Tri.pdf https://we.tl/t-uqOUR0bxxk