anchor.diff:        (princ tail-conf s)
         (princ begin-img-table s)
         (mapc (lambda (b) (princ (format-picture b) s)
  +		    (fresh-line s)
   		    (fresh-line s))
   	    (picture-list (invoice-item-list invoice)))
         (princ end-img-table s)
  
positive.code: 
  {\\color{red} \\textsc{Signature}}\\hspace{0.5cm} \\makebox[3in]{\\hrulefill} \\hspace{0.5cm} \\textsc{Date}\\hspace{0.5cm} \\makebox[1in]{\\hrulefill} \\\\
  \\textsc{Print}\\hspace{1.25cm} \\makebox[3in]{\\hrulefill}
  \\newpage  ")
  
  
  (defparameter document-conf "\\documentclass{invoice} % Use the custom invoice class (invoice.cls)
  
negative.code: (defparameter begin-table "\\begin{invoiceTable}")
  (defparameter end-table "\\end{invoiceTable}")
  (defparameter unitrow "\\unitrow{")
  (defparameter begin-img-table "\\figureSeriesFloat{}{")
  (defparameter end-img-table "}")
  (defparameter end-document " \\end{document}")
  (defparameter begin-document "\\begin{document}")
  
  
  ;;;Takes an invoice and root-dir
  
  (defparameter tail-conf "
  