PDFToDicomImage: 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 Debian possible default full paths are:

/usr/bin/PDFToDicomImage - from package: pixelmed-apps

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

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