pbmtojbg85: 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/pbmtojbg85 - from package: jbigkit-bin

You may install the required package with command apt-get install {package}
Error in other languages:
pbmtojbg85: bevel nie gevind nie
pbmtojbg85: comandă negăsită
pbmtojbg85: comando não encontrado
pbmtojbg85: commande introuvable
pbmtojbg85: command not found
pbmtojbg85: käsku ei ole
pbmtojbg85: không tìm thấy lệnh
pbmtojbg85: komanda nerasta
pbmtojbg85: Kommando nicht gefunden.
pbmtojbg85: kommandot finns inte
pbmtojbg85: komut yok
pbmtojbg85: nie znaleziono polecenia
pbmtojbg85: níor aimsíodh an t-ordú
pbmtojbg85: no se encontró la orden
pbmtojbg85: no s'ha trobat l'ordre
pbmtojbg85: opdracht niet gevonden
pbmtojbg85: parancs nem található
pbmtojbg85: perintah tidak ditemukan
pbmtojbg85: príkaz nenájdený
pbmtojbg85: příkaz nenalezen
pbmtojbg85: команда не найдена
pbmtojbg85: командата не е открита
pbmtojbg85: 命令找不到
pbmtojbg85: コマンドが見つかりません