使用 \includexmp{pdfa-1b} 避免错误。是否有包含完整 .XMP 文件的最佳实践和工作示例列表？

Question

我在尝试使用某些pdfa-1b东西：

(/usr/local/texlive/2015basic/texmf-dist/tex/generic/pgf/frontendlayer/tikz/lib
raries/tikzlibrarytopaths.code.tex))) (./chronosyschr.tex)) (./longtable.sty) (./arydshln.sty) (./xmpincl.sty
(/usr/local/texlive/2015basic/texmf-dist/tex/latex/base/ifthen.sty))
! Missing $ inserted.
<inserted text> 
                $
l.274 \includexmp{pdfa-1b}

? 

我的.tex 文件中的代码如下：

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% XMP data
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\usepackage{xmpincl}

\providecommand{\xmpProducer}{LaTeX2e}
\providecommand{\xmpOrg}{MyOrg}
\providecommand{\xmpTitle}{\ttitle}
\providecommand{\xmpAuthor}{\tauthor, [email protected]}
\providecommand{\xmpKeywords}{\tkeywordsEn}

\includexmp{pdfa-1b}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% pdfInfo
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\pdfinfo{%
/Title    (\ttitle)
/Author   (\tauthor, [email protected])
/Subject  (\ttitleEn)
/Keywords (\tkeywordsEn)
/ModDate  (\pdfcreationdate)
/Trapped  /False
}

XMP 元数据示例（或XMP 预定义架构) 除了 license.XMP 之外，在文档中不容易找到。但实际使用示例和最佳实践缺少更完整的元数据。

我正在尝试使用 GitHub repo 中的 pdfa-1b.xmp 文件： https://github.com/bencomp/pdfx-ext/blob/master/pdfa-1b.xmp （因为我们学院提供的任何内容都不编译；并将其内容放入https://www.pdflib.com/knowledge-base/xmp-metadata/free-xmp-validator/转身无效）。

并且所有广泛的文档都缺乏基本的工作示例...或者可能只是查看了错误的 pdfa-1b 文档/包...

提前感谢您的任何有用的答案。

Answer 1

该xmpincl包可以与手册中提供的 xmp 文件一起使用（参见https://www.ctan.org/tex-archive/macros/latex/contrib/xmpincl?lang=en，从.dtx文件末尾复制xmp是最简单的）。

但是，该pdfa-1b.xmp文件包含一些带有 的条件@，因此您需要用 和 来包围它们\includexmp。\makeatletter在\makeatother我的系统上，由于某种原因，该\ifx \@empty构造不起作用（执行了 else 子句），我在 xmp 文件中用 替换了它，\ifx \undefined这样就可以正常工作。

梅威瑟：

\documentclass{article}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% XMP data
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\usepackage{xmpincl}

\providecommand{\xmpProducer}{LaTeX2e}
\providecommand{\xmpOrg}{MyOrg}
\providecommand{\xmpTitle}{MyTitle}
\providecommand{\xmpAuthor}{MyAuthor, [email protected]}
\providecommand{\xmpKeywords}{MyKeywords}
\providecommand{\xmpSubject}{MySubject}
\providecommand{\xmpCreatorTool}{\pdftexbanner}
\providecommand{\convDate}{\pdfcreationdate}
\makeatletter
\includexmp{pdfa-1b}
\makeatother
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% pdfInfo
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\pdfinfo{%
/Title    (MyTitle)
/Author   (MyAuthor, [email protected])
/Subject  (MySubject)
/Keywords (MyKeywords)
/ModDate  (\pdfcreationdate)
/Trapped  /False
}
\begin{document}
Hello, world!
\end{document}

修改后的片段pdfa-1b.xmp：

\ifx\xmpJournalnumber\undefined\relax\else<prism:issn>\xmpJournalnumber</prism:issn>\fi
\ifx\xmpVolume\undefined\relax\else<prism:volume>\xmpVolume</prism:volume>\fi
\ifx\xmpIssue\undefined\relax\else<prism:number>\xmpIssue</prism:number>\fi

结果：