Python 如何获取PDF书签并将书签添加到新PDF？

我正在将一个PDf合并到另一个PDf，工作正常，但最终PDf中缺少书签

以下是PDF生成代码：

#- Create One Page PDF with some text
from reportlab.pdfgen import canvas as canx
c = canx.Canvas('transparent.pdf')
c.setStrokeColor((1, 0, 0))
transparentwhite = canx.Color(255, 255, 255, alpha = 0.0)
c.setFillColor(transparentwhite)
t = c.beginText()
t.setTextRenderMode(2)
c._code.append(t.getCode())
c.setFont('Helvetica', 48)
c.saveState()
c.translate(100, 100)
c.rotate(45)
c.drawCentredString(500, 100, 'DRAFT')
c.save()

#- Merge PDF.
transparentbannerfile = open('transparent.pdf', 'rb')
testpagefile = open('NOID_body20160202T133650.pdf', 'rb')
outputfile = open('mergedtransparent.pdf', 'wb')
import PyPDF2 as pdf
readerbanner = pdf.PdfFileReader(transparentbannerfile)
readertestpages = pdf.PdfFileReader(testpagefile)
bannerpage = readerbanner.getPage(0)
writeroutput = pdf.PdfFileWriter()
for x in xrange(readertestpages.getNumPages()):
  pagex = readertestpages.getPage(x)
  pagex.mergePage(bannerpage)
  writeroutput.addPage(pagex)

writeroutput.write(outputfile)
outputfile.close()
transparentbannerfile.close()
testpagefile.close()

from pyPdf import PdfFileReader
pdf_toread = PdfFileReader(open('NOID_body20160202T133650.pdf', "rb"))
pdf_info = pdf_toread.getDocumentInfo()
print pdf_info

以下是合并代码：

#- Create One Page PDF with some text
from reportlab.pdfgen import canvas as canx
c = canx.Canvas('transparent.pdf')
c.setStrokeColor((1, 0, 0))
transparentwhite = canx.Color(255, 255, 255, alpha = 0.0)
c.setFillColor(transparentwhite)
t = c.beginText()
t.setTextRenderMode(2)
c._code.append(t.getCode())
c.setFont('Helvetica', 48)
c.saveState()
c.translate(100, 100)
c.rotate(45)
c.drawCentredString(500, 100, 'DRAFT')
c.save()

#- Merge PDF.
transparentbannerfile = open('transparent.pdf', 'rb')
testpagefile = open('NOID_body20160202T133650.pdf', 'rb')
outputfile = open('mergedtransparent.pdf', 'wb')
import PyPDF2 as pdf
readerbanner = pdf.PdfFileReader(transparentbannerfile)
readertestpages = pdf.PdfFileReader(testpagefile)
bannerpage = readerbanner.getPage(0)
writeroutput = pdf.PdfFileWriter()
for x in xrange(readertestpages.getNumPages()):
  pagex = readertestpages.getPage(x)
  pagex.mergePage(bannerpage)
  writeroutput.addPage(pagex)

writeroutput.write(outputfile)
outputfile.close()
transparentbannerfile.close()
testpagefile.close()

from pyPdf import PdfFileReader
pdf_toread = PdfFileReader(open('NOID_body20160202T133650.pdf', "rb"))
pdf_info = pdf_toread.getDocumentInfo()
print pdf_info

但元数据中缺少书签和标题

什么是

'bookmarkshorizontalAbsolute'、画布

对象的方法

---

同样的问题也在这里

我可以从以下代码中获得标题：

#- Create One Page PDF with some text
from reportlab.pdfgen import canvas as canx
c = canx.Canvas('transparent.pdf')
c.setStrokeColor((1, 0, 0))
transparentwhite = canx.Color(255, 255, 255, alpha = 0.0)
c.setFillColor(transparentwhite)
t = c.beginText()
t.setTextRenderMode(2)
c._code.append(t.getCode())
c.setFont('Helvetica', 48)
c.saveState()
c.translate(100, 100)
c.rotate(45)
c.drawCentredString(500, 100, 'DRAFT')
c.save()

#- Merge PDF.
transparentbannerfile = open('transparent.pdf', 'rb')
testpagefile = open('NOID_body20160202T133650.pdf', 'rb')
outputfile = open('mergedtransparent.pdf', 'wb')
import PyPDF2 as pdf
readerbanner = pdf.PdfFileReader(transparentbannerfile)
readertestpages = pdf.PdfFileReader(testpagefile)
bannerpage = readerbanner.getPage(0)
writeroutput = pdf.PdfFileWriter()
for x in xrange(readertestpages.getNumPages()):
  pagex = readertestpages.getPage(x)
  pagex.mergePage(bannerpage)
  writeroutput.addPage(pagex)

writeroutput.write(outputfile)
outputfile.close()
transparentbannerfile.close()
testpagefile.close()

from pyPdf import PdfFileReader
pdf_toread = PdfFileReader(open('NOID_body20160202T133650.pdf', "rb"))
pdf_info = pdf_toread.getDocumentInfo()
print pdf_info

通过

setTitle

方法将标题设置为新PDF

#- Create One Page PDF with some text
from reportlab.pdfgen import canvas as canx
c = canx.Canvas('transparent.pdf')
c.setTitle("Test to set Title")

或：

---

书签

首先从这些代码中输入pdf获取书签

以下代码将书签添加到新PDF：

`

`

---

现在如何处理嵌套书签：）？？我可以从以下代码中获取标题：

#- Create One Page PDF with some text
from reportlab.pdfgen import canvas as canx
c = canx.Canvas('transparent.pdf')
c.setStrokeColor((1, 0, 0))
transparentwhite = canx.Color(255, 255, 255, alpha = 0.0)
c.setFillColor(transparentwhite)
t = c.beginText()
t.setTextRenderMode(2)
c._code.append(t.getCode())
c.setFont('Helvetica', 48)
c.saveState()
c.translate(100, 100)
c.rotate(45)
c.drawCentredString(500, 100, 'DRAFT')
c.save()

#- Merge PDF.
transparentbannerfile = open('transparent.pdf', 'rb')
testpagefile = open('NOID_body20160202T133650.pdf', 'rb')
outputfile = open('mergedtransparent.pdf', 'wb')
import PyPDF2 as pdf
readerbanner = pdf.PdfFileReader(transparentbannerfile)
readertestpages = pdf.PdfFileReader(testpagefile)
bannerpage = readerbanner.getPage(0)
writeroutput = pdf.PdfFileWriter()
for x in xrange(readertestpages.getNumPages()):
  pagex = readertestpages.getPage(x)
  pagex.mergePage(bannerpage)
  writeroutput.addPage(pagex)

writeroutput.write(outputfile)
outputfile.close()
transparentbannerfile.close()
testpagefile.close()

from pyPdf import PdfFileReader
pdf_toread = PdfFileReader(open('NOID_body20160202T133650.pdf', "rb"))
pdf_info = pdf_toread.getDocumentInfo()
print pdf_info

通过

setTitle

方法将标题设置为新PDF

#- Create One Page PDF with some text
from reportlab.pdfgen import canvas as canx
c = canx.Canvas('transparent.pdf')
c.setTitle("Test to set Title")

或：

---

书签

首先从这些代码中输入pdf获取书签

以下代码将书签添加到新PDF：

`

` 现在如何处理嵌套书签：）？？