pdf-slatex: 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/pdf-slatex - from package: racket

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

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