pdfcomment环境无法正常工作，仅使用文本即可正常工作paragraph。
我的 MWE 是：
\documentclass{article}
\usepackage{amsthm,xcolor}
\usepackage[subject={Top1},author={Daisy Duck},version=1,opacity=0,voffset=8pt,hoffset=-2pt]{pdfcomment}
\theoremstyle{theorem}
\newtheorem{theorem}{Theorem}
\newtheorem{lemma}[theorem]{Lemma}
\def\Added#1{\pdfsquarecomment[author={Added Text:}]{#1}#1}
\def\Deleted#1{\pdfsquarecomment[author={Deleted Text:}]{#1}}
\def\Replaced#1#2{\pdfsquarecomment[author={Replaced Text: #1 with}]{#2}#2}
\def\Commentson{\let\Add\Added\let\Del\Deleted\let\Rep\Replaced}
\begin{document}
\Commentson
Thus leave \Add{open} essentially \Del{just} the \Rep{Cases}{case} of polylogarithmic $r(n)$ (beyond the general constant $r\geq 4$ noted above).
\begin{lemma}[Tannery's Theorem]\label{lem1}
If, for each $i\geq 1$, we have $\lim_{n\to\infty}f_{i}(n)=f_{i}$ and $|f_i(n)| \leq M_i$ integer-valued sequence $(s_n)$ with $s_n\to\infty$.
\end{lemma}
.... and ....
\begin{lemma}[Tannery's \Del{t}heorem]\label{lem2} %%% Heading is missing in the PDF file when using \Del command
If, for each $i\geq 1$, we have $\lim_{n\to\infty}f_{i}(n)=f_{i}$ and $|f_i(n)| \leq M_i$ integer-valued sequence $(s_n)$ with $s_n\to\infty$.
\end{lemma}
\end{document}
使用命令时，PDF 文件中缺少引理 2 标题\Del。如何获取支持 的相应 PDF 文件Acobat Reader。
答案1
在处理定理标题时，amsthm不需要像这样的奇异命令\pdfcomment。虽然这可能可以通过一些扩展技巧来解决，但您也可以作弊并稍后跳回到标题中，只是为了添加评论。
这稍微复杂一些，因为您需要存储标题的其余部分（以知道需要跳回多远）并且需要调用另一个命令来实际放置评论。
以下两个命令实现了这种方法：
% collect the comment and the rest of the title, typeset the rest of the title
\def\collect#1#2{\xdef\commentarg{#1}\xdef\collected{#2}#2}
% jump left, put a delete comment with the collected comment text, jump right
\def\retrodel{\hspace{\widthof{\collected). }*-1}\Del{\commentarg}\hspace{\widthof{\collected). }}}
梅威瑟：
\documentclass{article}
\usepackage{amsthm,xcolor}
\usepackage[subject={Top1},author={Daisy Duck},version=1,opacity=0,voffset=8pt,hoffset=-2pt]{pdfcomment}
%\theoremstyle{theorem}
\newtheorem{theorem}{Theorem}
\newtheorem{lemma}[theorem]{Lemma}
\def\Added#1{\pdfsquarecomment[author={Added Text:}]{#1}#1}
\def\Deleted#1{\pdfsquarecomment[author={Deleted Text:}]{#1}}
\def\Replaced#1#2{\pdfsquarecomment[author={Replaced Text: #1 with}]{#2}#2}
\def\Commentson{\let\Add\Added\let\Del\Deleted\let\Rep\Replaced}
\def\collect#1#2{\xdef\commentarg{#1}\xdef\collected{#2}#2}
\def\retrodel{\hspace{\widthof{\collected). }*-1}\Del{\commentarg}\hspace{\widthof{\collected). }}}
\begin{document}
\Commentson
Thus leave \Add{open} essentially \Del{just} the \Rep{Cases}{case} of polylogarithmic $r(n)$ (beyond the general constant $r\geq 4$ noted above).
\begin{lemma}[Tannery's Theorem]\label{lem1}
If, for each $i\geq 1$, we have $\lim_{n\to\infty}f_{i}(n)=f_{i}$ and $|f_i(n)| \leq M_i$ integer-valued sequence $(s_n)$ with $s_n\to\infty$.
\end{lemma}
.... and ....
\begin{lemma}[Tannery's \collect{t}{heorem}]\label{lem2}\retrodel %%% Heading is missing in the PDF file when using \Del command
If, for each $i\geq 1$, we have $\lim_{n\to\infty}f_{i}(n)=f_{i}$ and $|f_i(n)| \leq M_i$ integer-valued sequence $(s_n)$ with $s_n\to\infty$.
\end{lemma}
\end{document}
结果：
