Package: xmltex

"xmltex" package binaries on CentOS:

/usr/bin/pdfxmltex /usr/bin/xmltex

You may install this package on CentOS with yum install xmltex

"xmltex" package binaries on Debian:

/usr/bin/pdfxmltex /usr/bin/xmltex

You may install this package on Debian with apt-get install xmltex