podofomerge: command not found

Have You tried accessing the binary with the full path?

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On CentOS possible default full paths are:

/usr/bin/podofomerge - from package: podofo

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/podofomerge - from package: libpodofo-utils

You may install the required package with command apt-get install {package}
Error in other languages:
podofomerge: bevel nie gevind nie
podofomerge: comandă negăsită
podofomerge: comando não encontrado
podofomerge: commande introuvable
podofomerge: command not found
podofomerge: käsku ei ole
podofomerge: không tìm thấy lệnh
podofomerge: komanda nerasta
podofomerge: Kommando nicht gefunden.
podofomerge: kommandot finns inte
podofomerge: komut yok
podofomerge: nie znaleziono polecenia
podofomerge: níor aimsíodh an t-ordú
podofomerge: no se encontró la orden
podofomerge: no s'ha trobat l'ordre
podofomerge: opdracht niet gevonden
podofomerge: parancs nem található
podofomerge: perintah tidak ditemukan
podofomerge: príkaz nenájdený
podofomerge: příkaz nenalezen
podofomerge: команда не найдена
podofomerge: командата не е открита
podofomerge: 命令找不到
podofomerge: コマンドが見つかりません