def __unisci__(self):
try:
name = filedialog.asksaveasfilename(filetypes=[("PDF file",".pdf")])
if(name.endswith('.pdf') == False):
name = name+'.pdf'
PDFMangerFacade.merge(*self.files, filenameOut=name)
except Exception as e:
messagebox.showwarning("Attenzione",e)
