#使用PdfFileWriter
import PyPDF2
 
pdfFiles = []
for filename in os.listdir('.'):
if filename.endswith('.pdf'):
pdfFiles.append(filename)
print(pdfFiles)
pdfWriter = PyPDF2.PdfFileWriter()
 
pdfFileObj = open(pdfFiles[0],'rb')
pdfReader = PyPDF2.PdfFileReader(pdfFileObj) # 得到PdfFileReader对象
first,end =map(int,input('从多少页到多少页(用空格隔开):').split())
for pageNum in range(first-1,end):
pageObj = pdfReader.getPage(pageNum)
pdfWriter.addPage(pageObj)
pdfOutput = open ('split_pdf.pdf','wb')
pdfWriter.write(pdfOutput)
pdfOutput.close()

#使用PdfFileMerger()
import PyPDF2
merger = PyPDF2.PdfFileMerger()
a = [str(i)+'webbook.pdf'for i in range(0,124)]
for i in a:
print(i)
merger.append(open(i,'rb'))
print("合并完成第"+str(i))
with open('combintion.pdf','wb') as f:
merger.write(f)