gentoo-overlay/app-text/qpdf/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
	<maintainer type="project">
		<email>printing@gentoo.org</email>
		<name>Gentoo Printing Project</name>
	</maintainer>
	<upstream>
		<remote-id type="cpe">cpe:/a:qpdf_project:qpdf</remote-id>
		<remote-id type="github">qpdf/qpdf</remote-id>
		<remote-id type="sourceforge">qpdf</remote-id>
	</upstream>
</pkgmetadata>