PDF multipage

Il s'agit d'une démonstration de la création d'un fichier pdf avec plusieurs pages, ainsi que de l'ajout de métadonnées et d'annotations aux fichiers pdf.

Si vous souhaitez utiliser un fichier pdf multipage en utilisant LaTeX, vous devez utiliser . Cette version ne prend cependant pas en charge .from matplotlib.backends.backend_pgf import PdfPagesattach_note

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 `False`
    plt.rcParams['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)")  # attach metadata (as pdf note) to page
    pdf.savefig()
    plt.close()

    plt.rcParams['text.usetex'] = False
    fig = plt.figure(figsize=(4, 5))
    plt.plot(x, x ** 2, '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'] = '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()