Python实现PyPDF2处理PDF文件的方法示例

PyPDF2.PdfFileReader(stream,strict = True,warndest = None,overwriteWarnings = True)

# encoding:utf-8
from PyPDF2 import PdfFileReader, PdfFileWriter

readFile = 'C:/Users/Administrator/Desktop/RxJava 完全解析.pdf'
# 获取 PdfFileReader 对象
pdfFileReader = PdfFileReader(readFile) # 或者这个方式：pdfFileReader = PdfFileReader(open(readFile, 'rb'))
# 获取 PDF 文件的文档信息
documentInfo = pdfFileReader.getDocumentInfo()
print('documentInfo = %s' % documentInfo)
# 获取页面布局
pageLayout = pdfFileReader.getPageLayout()
print('pageLayout = %s ' % pageLayout)

# 获取页模式
pageMode = pdfFileReader.getPageMode()
print('pageMode = %s' % pageMode)

xmpMetadata = pdfFileReader.getXmpMetadata()
print('xmpMetadata = %s ' % xmpMetadata)

# 获取 pdf 文件页数
pageCount = pdfFileReader.getNumPages()

print('pageCount = %s' % pageCount)
for index in range(0, pageCount):
  # 返回指定页编号的 pageObject
  pageObj = pdfFileReader.getPage(index)
  print('index = %d , pageObj = %s' % (index, type(pageObj))) # <class 'PyPDF2.pdf.PageObject'>
  # 获取 pageObject 在 PDF 文档中处于的页码
  pageNumber = pdfFileReader.getPageNumber(pageObj)
  print('pageNumber = %s ' % pageNumber)

def addBlankpage():
  readFile = 'C:/Users/Administrator/Desktop/RxJava 完全解析.pdf'
  outFile = 'C:/Users/Administrator/Desktop/copy.pdf'
  pdfFileWriter = PdfFileWriter()

  # 获取 PdfFileReader 对象
  pdfFileReader = PdfFileReader(readFile) # 或者这个方式：pdfFileReader = PdfFileReader(open(readFile, 'rb'))
  numPages = pdfFileReader.getNumPages()

  for index in range(0, numPages):
    pageObj = pdfFileReader.getPage(index)
    pdfFileWriter.addPage(pageObj) # 根据每页返回的 PageObject,写入到文件
    pdfFileWriter.write(open(outFile, 'wb'))

  pdfFileWriter.addBlankPage()  # 在文件的最后一页写入一个空白页,保存至文件中
  pdfFileWriter.write(open(outFile,'wb'))

def splitPdf():
  readFile = 'C:/Users/Administrator/Desktop/RxJava 完全解析.pdf'
  outFile = 'C:/Users/Administrator/Desktop/copy.pdf'
  pdfFileWriter = PdfFileWriter()

  # 获取 PdfFileReader 对象
  pdfFileReader = PdfFileReader(readFile) # 或者这个方式：pdfFileReader = PdfFileReader(open(readFile, 'rb'))
  # 文档总页数
  numPages = pdfFileReader.getNumPages()

  if numPages > 5:
    # 从第五页之后的页面，输出到一个新的文件中，即分割文档
    for index in range(5, numPages):
      pageObj = pdfFileReader.getPage(index)
      pdfFileWriter.addPage(pageObj)
    # 添加完每页，再一起保存至文件中
    pdfFileWriter.write(open(outFile, 'wb'))

def mergePdf(inFileList, outFile):
  '''
  合并文档
  :param inFileList: 要合并的文档的 list
  :param outFile:  合并后的输出文件
  :return:
  '''
  pdfFileWriter = PdfFileWriter()
  for inFile in inFileList:
    # 依次循环打开要合并文件
    pdfReader = PdfFileReader(open(inFile, 'rb'))
    numPages = pdfReader.getNumPages()
    for index in range(0, numPages):
      pageObj = pdfReader.getPage(index)
      pdfFileWriter.addPage(pageObj)

    # 最后,统一写入到输出文件中
    pdfFileWriter.write(open(outFile, 'wb'))

PageObject(pdf=None,indirectRef=None)

def getPdfContent(filename):
  pdf = PdfFileReader(open(filename, "rb"))
  content = ""
  for i in range(0, pdf.getNumPages()):
    pageObj = pdf.getPage(i)

    extractedText = pageObj.extractText()
    content += extractedText + "\n"
    # return content.encode("ascii", "ignore")
  return content