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Xelatex引擎加密pdf问题：dvipdfmx是否存在bug？

tag-icon • tag-icon xetex dvipdfmx drm
Xelatex引擎加密pdf问题：dvipdfmx是否存在bug？

我使用这里提到的方法“是否有一个包可以用密码保护渲染的 PDF？”。

\special{pdf:encrypt ownerpw (abc) userpw (xyz) length 128 perm 2052}
\documentclass{article}
\begin{document}
This is a test.
\end{document}

已测试：

  1. Win7 64位 + MiKTeX 2.9 32位

    没有使用所有者密码“abc”来加密pdf，而是通过设置使用用户密码“xyz”。

    miktex-dvipdfmx.exe 版本：

    This is xdvipdfmx Version 20160619 by the DVIPDFMx project team,
modified for TeX Live and MiKTeX,
an extended version of DVIPDFMx, which in turn was
an extended version of dvipdfm-0.13.2c developed by Mark A. Wicks.

Copyright (C) 2002-2016 the DVIPDFMx project team
Copyright (C) 2006-2016 SIL International.

This is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

  2. macOS 10.12 + MacTeX-2016

    问题和上面的一样。

    dvipdfmx 版本：

    This is dvipdfmx Version 20160307 by the DVIPDFMx project team,
modified for TeX Live,
an extended version of dvipdfm-0.13.2c developed by Mark A. Wicks.

Copyright (C) 2002-2016 the DVIPDFMx project team
Copyright (C) 2006-2016 SIL International.

This is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

  3. 没有问题cloud.sagemath.com平台。

    编译命令：

    latexmk -xelatex -f -g -bibtex -synctex=1 --enable-write18 -interaction=nonstopmode 'text.tex'

    dvipdfmx 版本：

    This is dvipdfmx Version 20150315 by the DVIPDFMx project team,
modified for TeX Live,
an extended version of dvipdfm-0.13.2c developed by Mark A. Wicks.

Copyright (C) 2002-2015 the DVIPDFMx project team
Copyright (C) 2006 SIL International.

This is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

  4. 不存在这样的问题www.sharelatex.com 平台。

答案1

选项中出现了一个错误

-S

从某一天开始。解决方法：当您使用

\special{pdf:encrypt ...}

命令行选项

-S, -P, -K

不是必需的。如果删除这些选项，您将成功。选项中的错误

-S

已在 TeX Live SVN 中修复。无论如何，当您使用特殊命令时，不使用命令行选项进行加密更为简单：

\special{pdf:encrypt ...}

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