Le script python suivant fonctionnera sur n'importe quel Mac (Snow Leopard et supérieur). Il peut être utilisé sur la ligne de commande avec des fichiers PDF successifs comme arguments, ou vous pouvez les insérer dans une action Exécuter le script Shell dans Automator et créer un service (Action rapide dans Mojave).
Vous pouvez définir la résolution de l'image de sortie dans le script.
Le script et une action rapide peuvent être téléchargés depuis github.
#!/usr/bin/python
# coding: utf-8
import os, sys
import Quartz as Quartz
from LaunchServices import (kUTTypeJPEG, kUTTypeTIFF, kUTTypePNG, kCFAllocatorDefault)
resolution = 300.0 #dpi
scale = resolution/72.0
cs = Quartz.CGColorSpaceCreateWithName(Quartz.kCGColorSpaceSRGB)
whiteColor = Quartz.CGColorCreate(cs, (1, 1, 1, 1))
# Options: kCGImageAlphaNoneSkipLast (no trans), kCGImageAlphaPremultipliedLast
transparency = Quartz.kCGImageAlphaNoneSkipLast
#Save image to file
def writeImage (image, url, type, options):
destination = Quartz.CGImageDestinationCreateWithURL(url, type, 1, None)
Quartz.CGImageDestinationAddImage(destination, image, options)
Quartz.CGImageDestinationFinalize(destination)
return
def getFilename(filepath):
i=0
newName = filepath
while os.path.exists(newName):
i += 1
newName = filepath + " %02d"%i
return newName
if __name__ == '__main__':
for filename in sys.argv[1:]:
pdf = Quartz.CGPDFDocumentCreateWithProvider(Quartz.CGDataProviderCreateWithFilename(filename))
numPages = Quartz.CGPDFDocumentGetNumberOfPages(pdf)
shortName = os.path.splitext(filename)[0]
prefix = os.path.splitext(os.path.basename(filename))[0]
folderName = getFilename(shortName)
try:
os.mkdir(folderName)
except:
print "Can't create directory '%s'"%(folderName)
sys.exit()
# For each page, create a file
for i in range (1, numPages+1):
page = Quartz.CGPDFDocumentGetPage(pdf, i)
if page:
#Get mediabox
mediaBox = Quartz.CGPDFPageGetBoxRect(page, Quartz.kCGPDFMediaBox)
x = Quartz.CGRectGetWidth(mediaBox)
y = Quartz.CGRectGetHeight(mediaBox)
x *= scale
y *= scale
r = Quartz.CGRectMake(0,0,x, y)
# Create a Bitmap Context, draw a white background and add the PDF
writeContext = Quartz.CGBitmapContextCreate(None, int(x), int(y), 8, 0, cs, transparency)
Quartz.CGContextSaveGState (writeContext)
Quartz.CGContextScaleCTM(writeContext, scale,scale)
Quartz.CGContextSetFillColorWithColor(writeContext, whiteColor)
Quartz.CGContextFillRect(writeContext, r)
Quartz.CGContextDrawPDFPage(writeContext, page)
Quartz.CGContextRestoreGState(writeContext)
# Convert to an "Image"
image = Quartz.CGBitmapContextCreateImage(writeContext)
# Create unique filename per page
outFile = folderName +"/" + prefix + " %03d.png"%i
url = Quartz.CFURLCreateFromFileSystemRepresentation(kCFAllocatorDefault, outFile, len(outFile), False)
# kUTTypeJPEG, kUTTypeTIFF, kUTTypePNG
type = kUTTypePNG
# See the full range of image properties on Apple's developer pages.
options = {
Quartz.kCGImagePropertyDPIHeight: resolution,
Quartz.kCGImagePropertyDPIWidth: resolution
}
writeImage (image, url, type, options)
del page