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# Multipage PDF

This is a demo of creating a pdf file with several pages, as well as adding metadata and annotations to pdf files.

    import datetime
    import numpy as np
    from matplotlib.backends.backend_pdf import PdfPages
    import matplotlib.pyplot as plt

    # Create the PdfPages object to which we will save the pages:
    # The with statement makes sure that the PdfPages object is closed properly at
    # the end of the block, even if an Exception occurs.
    with PdfPages('multipage_pdf.pdf') as pdf:
        plt.figure(figsize=(3, 3))
        plt.plot(range(7), [3, 1, 4, 1, 5, 9, 2], 'r-o')
        plt.title('Page One')
        pdf.savefig()  # saves the current figure into a pdf page
        plt.close()

        # if LaTeX is not installed or error caught, change to `usetex=False`
        plt.rc('text', usetex=True)
        plt.figure(figsize=(8, 6))
        x = np.arange(0, 5, 0.1)
        plt.plot(x, np.sin(x), 'b-')
        plt.title('Page Two')
        pdf.attach_note("plot of sin(x)")  # you can add a pdf note to
                                           # attach metadata to a page
        pdf.savefig()
        plt.close()

        plt.rc('text', usetex=False)
        fig = plt.figure(figsize=(4, 5))
        plt.plot(x, x*x, 'ko')
        plt.title('Page Three')
        pdf.savefig(fig)  # or you can pass a Figure object to pdf.savefig
        plt.close()

        # We can also set the file's metadata via the PdfPages object:
        d = pdf.infodict()
        d['Title'] = 'Multipage PDF Example'
        d['Author'] = u'Jouni K. Sepp\xe4nen'
        d['Subject'] = 'How to create a multipage pdf file and set its metadata'
        d['Keywords'] = 'PdfPages multipage keywords author title subject'
        d['CreationDate'] = datetime.datetime(2009, 11, 13)
        d['ModDate'] = datetime.datetime.today()

Total running time of the script: ( 0 minutes 1.411 seconds)

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