Is it possible to insert a new page into an arbitrary position of a multi page pdf file?
In this dummy example, I am creating some pdf pages:
from matplotlib.backends.backend_pdf import PdfPages
import matplotlib.pyplot as plt
with PdfPages('dummy.pdf') as pdf:
for i in range(5):
plt.plot(1,1)
pdf.savefig()
plt.close()
now I would like to plot something else and save the new plot as page 1 of the pdf.
You can use the module PyPDF2. It gives you the possibility to merge or manipulate pdf files. I tried a simple example, creating another pdf file with 1 page only and adding this page in the middle of the first file. Then I write everything to a new output file:
from matplotlib.backends.backend_pdf import PdfPages
import matplotlib.pyplot as plt
from PyPDF2 import PdfFileWriter, PdfFileReader
with PdfPages('dummy.pdf') as pdf:
for i in range(5):
plt.plot(1,1)
pdf.savefig()
plt.close()
#Create another pdf file
with PdfPages('dummy2.pdf') as pdf:
plt.plot(range(10))
pdf.savefig()
plt.close()
infile = PdfFileReader('dummy.pdf', 'rb')
infile2 = PdfFileReader('dummy2.pdf', 'rb')
output = PdfFileWriter()
p2 = infile2.getPage(0)
for i in xrange(infile.getNumPages()):
p = infile.getPage(i)
output.addPage(p)
if i == 3:
output.addPage(p2)
with open('newfile.pdf', 'wb') as f:
output.write(f)
Maybe there is a smarter way to do that, but I hope this helps to start with.
