Python et pdf¶
Il eexiste une librairie permettant de manipuler des fichiers pdf
pypdf: http://pybrary.net/pyPdf/ version de python testé: python 27
permet de créer et de manipuler des fichiers pdf
from pyPdf import PdfFileWriter, PdfFileReader
output = PdfFileWriter()
input1 = PdfFileReader(file("document1.pdf", "rb"))
# print the title of document1.pdf
print "title = %s" % (input1.getDocumentInfo().title)
# add page 1 from input1 to output document, unchanged
output.addPage(input1.getPage(0))
# add page 2 from input1, but rotated clockwise 90 degrees
output.addPage(input1.getPage(1).rotateClockwise(90))
# add page 3 from input1, rotated the other way:
output.addPage(input1.getPage(2).rotateCounterClockwise(90))
# alt: output.addPage(input1.getPage(2).rotateClockwise(270))
# add page 4 from input1, but first add a watermark from another pdf:
page4 = input1.getPage(3)
watermark = PdfFileReader(file("watermark.pdf", "rb"))
page4.mergePage(watermark.getPage(0))
# add page 5 from input1, but crop it to half size:
page5 = input1.getPage(4)
page5.mediaBox.upperRight = (
page5.mediaBox.getUpperRight_x() / 2,
page5.mediaBox.getUpperRight_y() / 2
)
output.addPage(page5)
# print how many pages input1 has:
print "document1.pdf has %s pages." % input1.getNumPages()
# finally, write "output" to document-output.pdf
outputStream = file("document-output.pdf", "wb")
output.write(outputStream)
outputStream.close()
Cette librairie permet de manipuler les pdf a volonter (fusion, découpage, rotation) mais aussi par exemple extraction des commentaires (on a accès aux objets que contient le pdf)
import pyPdf
def extract(path):
pdf = pyPdf.PdfFileReader(file(path,"rb"))
list(pdf.pages) # Process all the objects.
objs = pdf.resolvedObjects
for i in range(0,pdf.getNumPages()):
pg = pdf.getPage(i)
if pg.has_key('/Annots'):
for note in pg['/Annots']:
if objs[0][note.idnum].has_key('/Contents'):
print("Page %i : %s" % (i, objs[0][note.idnum]['/Contents']))
extract('file.pdf')