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 Simple web2py controller to generate PDF documents with ReportLab.
 Author: H.C. v. Stockhausen <hc at vst.io>
 Date:   2012-10-14
 Also see http://www.reportlab.com
import cStringIO
from reportlab.platypus.doctemplate import SimpleDocTemplate
from reportlab.platypus import Paragraph, Spacer
from reportlab.lib.styles import getSampleStyleSheet
from reportlab.lib.units import inch
def generate():
    To display the generated PDF in your browser go to:
    To download it as hello.pdf, for example, instead, use:
    styles = getSampleStyleSheet()
    story = [
        Paragraph("Hello World", styles['Heading1']),
        Paragraph("The quick brown fox", styles['Normal']),
        Spacer(1, 0.25*inch),
        Paragraph("jumps over the lazy dog.", styles['Normal'])]
    buffer = cStringIO.StringIO()   
    doc = SimpleDocTemplate(buffer)
    pdf = buffer.getvalue()
    filename = request.args(0)
    if filename:
        header = {'Content-Disposition': 'attachment; filename=' + filename}
        header = {'Content-Type': 'application/pdf'}
    return pdf

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