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bookmark_write.py
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bookmark_write.py
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#coding=utf-8
import os
import sys
import re
import codecs
from PyPDF2 import PdfFileReader, PdfFileWriter
def _writeBookmarkToStream(outlines, stream, level):
"""
Write bookmark to file strem.
param outlines: PyPDF2.generic.Destination list
param level: bookmark level, the topmost level is 0
"""
for i in range(0, len(outlines)):
outline = outlines[i]
if type(outline) == list:
_writeBookmarkToStream(outline, stream, level + 1)
else:
for j in range(0, level):
stream.write('\t')
bmTitle = outline['/Title']
bmRatio = outline['/Ratio']
stream.write(bmTitle + ' ' + ('%.2f' % bmRatio) + '\n')
def readBookmarkFromFile(bmPathName):
"""
Read bookmark from file and store the content in dict list.
return: outlines-dict list which has '/Title' and '/Ratio' keys
"""
outlines = []
lastTabNum = 0
r = re.compile(r'\s*(.*)\s+(\d+\.*\d*)\s*')
r2 = re.compile(r'\s*\S.*')
lines=codecs.open(bmPathName,mode='r',encoding='utf-16').readlines()
# print('lines:',lines)
for line in lines:
line=line.encode('utf-8')
# print('line:',line)
if not r2.match(line): # line contain only white spaces
continue
matchObj = r.match(line)
if not matchObj:
print ('bookmark file format error in: ' + line)
sys.exit(0)
tabNum = matchObj.start(1)
bmTitle = matchObj.group(1)
pageRatio = float(matchObj.group(2)) - 1
bmPage = int(pageRatio)
bmRatio = pageRatio - bmPage
outline = {}
outline['/Title'] = bmTitle
outline['/Ratio'] = pageRatio
tempOutlines = outlines
if tabNum > lastTabNum + 1:
print ('bookmark file format error in: ' + line)
sys.exit(0)
elif tabNum == lastTabNum + 1:
for i in range(0, tabNum - 1):
tempOutlines = tempOutlines[-1]
tempOutlines.append([outline])
else:
for i in range(0, tabNum):
tempOutlines = tempOutlines[-1]
tempOutlines.append(outline)
lastTabNum = tabNum
return outlines
def _writeOutlinesToPdf(outlines, output, parent):
"""
Add bookmarks stored in outlines.
param output: PyPDF2.PdfFileWriter object
param parent: parent bookmark
"""
lastBm = parent
for i in range(0, len(outlines)):
outline = outlines[i]
if not type(outline) == list:
ratio = outline['/Ratio']
bmTitle = (outline['/Title']).decode('UTF-8')
bmTitle = (u'\uFEFF' + bmTitle).encode('UTF-16-BE') # see PDF reference(version 1.7) section 3.8.1
bmPage = int(ratio)
bmTop = (float)(output.getPage(0).mediaBox.getHeight()) * (1 - (ratio - bmPage))
bmCur = output.addBookmark(bmTitle, bmPage, parent, None, False, False, '/Fit', bmTop)
lastBm = bmCur
else:
_writeOutlinesToPdf(outline, output, lastBm)
class PdfBookmark(object):
"""
This class supports import/export PDF's
bookmarks from/to a file.
"""
def __init__(self, pdfPathName):
self.pdfFileName = pdfPathName
self._pdfStream = open(self.pdfFileName, 'rb')
self._pdfReader = PdfFileReader(self._pdfStream)
self.pageLabels = self._getPageLabels()
self.outlines = self._pdfReader.getOutlines()
self._addPageRatio(self.outlines, self.pageLabels)
def getBookmark(self):
"""
Retrieve this pdf's bookmark.
"""
return self.outlines
def exportBookmark(self, bookmarkFile):
"""
Export bookmarks to a file.
"""
stream = codecs.open(bookmarkFile, 'w', encoding='utf8')
_writeBookmarkToStream(self.outlines, stream, 0)
print ("Export %s's bookmarks to %s finished!" % (self.pdfFileName, bookmarkFile))
def importBookmark(self, bookmarkFile, saveAsPdfName=None):
"""
Import the contents from a bookmark file and add these bookmarks
to the current pdf file or another pdf file.
"""
outlines = readBookmarkFromFile(bookmarkFile)
output = PdfFileWriter()
for i in range(0, self._pdfReader.getNumPages()):
output.addPage(self._pdfReader.getPage(i))
_writeOutlinesToPdf(outlines, output, None)
if saveAsPdfName == None:
saveAsPdfName = self.pdfFileName[0:-4] + '_bookmark.pdf'
stream = open(saveAsPdfName, 'wb')
output.write(stream)
print ("Add bookmarks in %s to %s finished!" % (bookmarkFile, saveAsPdfName))
def _getPageLabels(self):
"""
Get the map from IndirectObject id to real page number.
"""
pageLabels = {}
pages = list(self._pdfReader.pages)
for i in range(0, len(pages)):
page = pages[i]
pageLabels[page.indirectRef.idnum] = i + 1
return pageLabels
def _addPageRatio(self, outlines, pageLabels):
"""
Retrieves page ratio from Destination list.
param outlines: Destination list
param pageLabels: map from IndirectObject id to real page number
"""
for i in range(0, len(outlines)):
outline = outlines[i]
if type(outline) == list:
self._addPageRatio(outlines[i], pageLabels)
continue
elif not outline.has_key('/Page'):
print ("Error: outline has no key '/Page'")
sys.exit(-1)
pageHeight = outline['/Page']['/MediaBox'][-1]
idIndirect = outline.page.idnum
if pageLabels.has_key(idIndirect):
pageNum = pageLabels[idIndirect]
else:
print ('Error: Page corresponds to IndirectObject %d not Found' % idIndirect)
sys.exit(-1)
if outline.has_key('/Top'):
top = outline['/Top']
else:
top = pageHeight
if outline.has_key('/Zoom'):
zoom = outline['/Zoom']
else:
zoom = 1
outline = dict(outline)
try:
outline['/Ratio'] = pageNum + (1 - top / zoom / pageHeight)
except:
pass
outlines[i] = outline
def main():
# add PyPDF2 library to system path
# sys.path.append('D:/QSQ/Desktop/PyPDF2-master/')
bm = PdfBookmark(r'E:\xinfeng\14\bookmark\0327-error\pdf-1\60516356.pdf')
# print('get bm')
# print bm.getBookmark()
# bm.exportBookmark('test1.bm')
bm.importBookmark(r'E:\xinfeng\14\bookmark\0327-error\pdf-1\out\60516356_bookmark.txt')
if __name__ == '__main__':
#将out子目录里的*_bookmark.txt书签文件写入，该目录下对应的pdf
# main()
# exit()
# pdf_file_path=''
# bookmark_file_path=''
if len(sys.argv) < 3:
print(u'默认pdf文件名与书签文件名一致：*.pdf *_bookmark.txt')
pdf_file_path =raw_input('pdf path:')
bookmark_file_path =raw_input('bookmark path:')
try:
bm = PdfBookmark(pdf_file_path.decode('utf-8'))
if os.path.exists(bookmark_file_path):
bm.importBookmark(bookmark_file_path.decode('utf-8'))
# print('add bookmark end')
else:
name_path, _ = os.path.splitext(pdf_file_path)
bm.importBookmark((name_path + '_bookmark.txt').decode('utf-8'))
# print('add bookmark end')
except:
print('write bookmark error1!!!')
else:
pdf_file_path =sys.argv[1]
bookmark_file_path =sys.argv[2]
try:
bm = PdfBookmark(pdf_file_path.decode('utf-8'))
if os.path.exists(bookmark_file_path):
bm.importBookmark(bookmark_file_path.decode('utf-8'))
# print('add bookmark end')
else:
name_path, _ = os.path.splitext(pdf_file_path)
bm.importBookmark((name_path + '_bookmark.txt').decode('utf-8'))
# print('add bookmark end')
except:
print('write bookmark error2!!!')
# print(pdf_file_path)
# if os.path.exists(pdf_file_path):
# print('open pdf end')
#
# bm = PdfBookmark(pdf_file_path)
# # print bm.getBookmark()
# # bm.exportBookmark('test1.bm')
# if os.path.exists(bookmark_file_path):
# bm.importBookmark(bookmark_file_path)
# print('add bookmark end')
# else:
# name_path,_=os.path.splitext(pdf_file_path)
# bm.importBookmark(name_path+'_bookmark.txt')
# print('add bookmark end')