Added Login + Working on pdf creation

src/file-processor/Dockerfile

@@ -7,6 +7,9 @@ WORKDIR /app
 RUN apt-get update && apt-get install -y --no-install-recommends \
     libmagic1 \
     file \
+    pandoc \
+    ghostscript \
+    texlive-xetex \
  && rm -rf /var/lib/apt/lists/*
 
 # Copy requirements and install dependencies