podofoimgextract: command not found

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/podofoimgextract - from package: podofo

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

On Debian possible default full paths are:

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

You may install the required package with command apt-get install {package}

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