New less and xpdf packages are available for CentOS-3 x86_64.
Please refer to less: https://rhn.redhat.com/errata/RHSA-2005-068.html RPMS/less-378-12.x86_64.rpm SRPMS/less-378-12.src.rpm
xpdf: https://rhn.redhat.com/errata/RHSA-2005-059.html RPMS/xpdf-2.02-9.5.x86_64.rpm SRPMS/xpdf-2.02-9.5.src.rpm
To apply run: yum update xpdf less
Tru