我需要你的帮助。明天我必须提交我的硕士论文。当我所有的代码都改变时，我几乎已经完成了。
我已经提取了 pdf，当我尝试保存代码时，它被替换为：
%%
%% This is file `pdfx.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% pdfx.dtx (with options: `package')
%%
%% Copyright (c) 2019, CV Radhakrishnan <[email protected]>,
%% Han The Thanh <[email protected]>,
%% Ross Moore <[email protected]>,
%% Peter Selinger <[email protected]>
%%
%% This file may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.2 of this
%% license or (at your option) any later version. The latest version
%% of this license is in:
%%
%% http://www.latex-project.org/lppl.txt
%%
%% and version 1.2 or later is part of all distributions of LaTeX
%% version 1999/12/01 or later.
我认为它从我的 pdf 创建了一个 sty 文件。但我仍然需要使用我的原始代码。我把它弄丢了吗？拜托，我需要一个解决方案！