Hyperref PDF metadata doesn't add author

Question

I've been trying to update the metadata of my PDF and I've encountered some problems. I loaded hyperref in the last place on my document, but I tried to put it in different places.

\documentclass[a4paper,12pt,twoside]{book}
\usepackage[utf8]{inputenc}
\usepackage[catalan]{babel}
\usepackage[T1]{fontenc}
\usepackage[
    type={CC},
    modifier={by-nc-nd},
    version={4.0},
]{doclicense}
\usepackage{extramarks}
\usepackage{etoolbox}
\makeatletter
\renewcommand{\title}[1]{\def@title{#1}}
\newcommand{\tipus}[1]{\def@tipus{#1}}
\newcommand{\actual}[2]{\def@curs{#1}\def@semestre{#2}}
\newcommand{\professor}[2]{\def@nom{#1}\def@cognom{#2}}
\newcommand{\resum}[1]{\def@resum{#1}}
\newcommand{\degree}[1]{\def@degree{#1}}
\newcommand{\titleback}[1]{\def@titleback{#1}}
\newcommand{\classification}[1]{\def@classification{#1}}
\makeatother
\author{Mario}
\title{Càlcul Diferencial en Diverses Variables}
\actual{2022-2023}{Cinquè}
\tipus{Apunts}
\professor{Dr. A}{B}
\degree{Matemàtiques}
\resum{Aquesta assignatura tracta les funcions reals de diverses variables reals, treballant les nocions de límit, continuïtat i diferenciabilitat d'aquestes funcions.}
\classification{00-01, 97I40, 97I60, 97N40}
\usepackage[pdftex,colorlinks=false]{hyperref}
\makeatletter%
  \hypersetup{%
    linkbordercolor={lightgray},%
    urlbordercolor={darkgray},%
    citebordercolor={lightgray},%
    pdfinfo={%
    Title={@title},%
    Author={@author},%
    Subject={@degree},%
    Producer={pdfTeX},%
    Creator={@author},%
    Keywords={@tipus},%
    }%
}
\makeatother%
\pgfplotsset{compat=1.18}
\begin{document}
\setlength{\baselineskip}{.6cm}
Hello
\end{document}

When I get info on the generated PDF, the author field doesn't even appear. The same happens with the keywords. I have also tried to assign Author to an immutable (like s, for example). Nothing has worked so far. Assume that I've tried everything in here, here and here.

Note: checking the hyperxmp documentation, in particular, the complete example section, it would suffice to include hyperxmp right before hyperref.

Thanks in advance!

I'm sorry it doesn't appear, with the copy-paste I must have left it out. I will update the MWE. It still doesn't work (both author and keywords). — mariovilar, Dec 27 '22 at 11:48
But it isn't. The Creator field catches the value correctly. I will leave a photo. — mariovilar, Dec 27 '22 at 11:50
seems to be caused by the doclicense package. Do you need this package? — samcarter_is_at_topanswers.xyz, Dec 27 '22 at 12:13
You are right!! But, yes, it would be preferable... would a workaround be possible? — mariovilar, Dec 27 '22 at 12:22
Don't dump simply your preamble on us. Make a shorter example. Remove all the package not related to the problem. — Ulrike Fischer, Dec 27 '22 at 12:37
Please follow this guide for MWE : https://tex.meta.stackexchange.com/questions/228/ive-just-been-asked-to-write-a-minimal-working-example-mwe-what-is-that — anis, Dec 27 '22 at 12:47
As I think you will understand, until half hour ago I didn't know what was the incompatibility. I will remove "all the package not related to the problem". — mariovilar, Dec 27 '22 at 12:50
sure, but if you had tried to make a concise example then you would have found out much earlier that the doclicense package is involved and could have ask a much better question. — Ulrike Fischer, Dec 27 '22 at 12:53

Ulrike Fischer · Accepted Answer · 2022-12-27T13:13:53.323

doclicense loads the hyperxmp package which adds XMP-metadata to the PDF.

As is described in the hyperxmp documentation on page 13, it suppresses some entries in the info dictionary to make pdf/A validators more happy. You can avoid this suppression by using the keeppdfinfo option:

\documentclass{book}
\usepackage[catalan]{babel}
\usepackage[T1]{fontenc}
\usepackage{hyperxmp}
\author{Mario}
\title{Càlcul Diferencial en Diverses Variables}
\usepackage{hyperref}
\makeatletter%
  \hypersetup{%
    pdfinfo={%
    Title={@title},%
    Author={@author},%
    Subject={subject},%
    Producer={pdfTeX},%
    Creator={@author},%
    Keywords={Apunts},%

    },%
    keeppdfinfo %keep info entries
}
\makeatother%
\begin{document}
Hello
\end{document}

In PDF 2.0 the info dictionary is deprecated in favor of XMP-metadata and in texlive 2023 pdftex will have an option to suppress it altogether.

Thank you. It seems to be working now. – mariovilar Dec 27 '22 at 13:11 — mariovilar, Dec 27 '22 at 13:11

Hyperref PDF metadata doesn't add author

1 Answers1