getpdftext: 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 Debian possible default full paths are:

/usr/bin/getpdftext - from package: libcam-pdf-perl

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