from cStringIO import StringIO

from reportlab.pdfgen import canvas

from django.http import HttpResponse

def hello_pdf(request):

    # Create the HttpResponse object with the appropriate PDF headers.

    response = HttpResponse(mimetype='application/pdf')

    response['Content-Disposition'] = 'attachment; filename=hello.pdf'

    temp = StringIO()

    # Create the PDF object, using the StringIO object as its "file."

    p = canvas.Canvas(temp)

    # Draw things on the PDF. Here's where the PDF generation happens.

    # See the ReportLab documentation for the full list of functionality.

    p.drawString(100, 100, "Hello world.")

    # Close the PDF object cleanly.

    p.showPage()

    p.save()

    # Get the value of the StringIO buffer and write it to the response.

    response.write(temp.getvalue())

    return response