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#!/usr/bin/env python2.7
import popplerqt5
import PyQt5.QtXml
import argparse
import tempfile
import shutil
def merge(target, src):
dom=PyQt5.QtXml.QDomDocument()
for pg_index in range(min(target.numPages(),src.numPages())):
p_tgt = target.page(pg_index)
p_src = src.page(pg_index)
for a in p_src.annotations():
if not has_annotation(p_tgt,a):
a_el = dom.createElement("annotation")
popplerqt5.Poppler.AnnotationUtils.storeAnnotation(a,a_el,dom)
a_tgt = popplerqt5.Poppler.AnnotationUtils.createAnnotation(a_el)
p_tgt.addAnnotation(a_tgt)
def has_annotation(page,a):
for pa in page.annotations():
if pa.uniqueName() == a.uniqueName():
return True
return False
def save_pdf(pdf_doc,filename):
c = pdf_doc.pdfConverter()
c.setOutputFileName(filename)
c.setPDFOptions(c.WithChanges)
c.convert()
def load_pdf(filename):
return popplerqt5.Poppler.Document.load(filename)
if __name__ == "__main__":
parser = argparse.ArgumentParser(description='A simple utility for merging pdf annotations')
parser.add_argument('file', help='the files to merge annotations from', nargs="+")
parser.add_argument('--output', help='the file to save annotations to (if not present, will save into the first file)')
args = parser.parse_args()
tgt = load_pdf(args.file[0])
for f in args.file[1:]:
src = load_pdf(f)
merge(tgt,src)
if args.output:
save_pdf(tgt,args.output)
else:
tmp_h,tmp_path = tempfile.mkstemp("pdf")
save_pdf(tgt,tmp_path)
del tgt
shutil.move(tmp_path,args.file[0])
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