本文實(shí)例講述了Python3將jpg轉(zhuǎn)為pdf文件的方法。分享給大家供大家參考，具體如下：

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#coding=utf-8
#!/usr/bin/env python
"""
convert image to pdf file
"""
#Author: mrbeann 
import os
import sys
import glob
import platform
from reportlab.lib.pagesizes import letter, A4, landscape
from reportlab.platypus import SimpleDocTemplate, Image
from reportlab.lib.units import inch
from reportlab.pdfgen import canvas
from reportlab import rl_settings
from PIL import Image
import importlib,sys
#importlib.reload(sys)
#sys.setdefaultencoding("utf-8")
def topdf(path,recursion=None,pictureType=None,sizeMode=None,width=None,height=None,fit=None,save=None):
  """
  Parameters
  ----------
  path : string
      path of the pictures
  recursion : boolean
        None or False for no recursion
        True for recursion to children folder
        wether to recursion or not
  pictureType : list
         type of pictures,for example :jpg,png...
  sizeMode : int
      None or 0 for pdf's pagesize is the biggest of all the pictures
      1 for pdf's pagesize is the min of all the pictures
      2 for pdf's pagesize is the given value of width and height
      to choose how to determine the size of pdf
  width : int
      width of the pdf page
  height : int
      height of the pdf page
  fit : boolean
      None or False for fit the picture size to pagesize
      True for keep the size of the pictures
      wether to keep the picture size or not
  save : string
      path to save the pdf
  """
  if platform.system() == 'Windows':
    path = path.replace('\\','/')
  if path[-1] != '/':
    path = (path + '/')
  if recursion == True:
    for i in os.listdir(path):
      if os.path.isdir(os.path.abspath(os.path.join(path, i))):
        topdf(path+i,recursion,pictureType,sizeMode,width,height,fit,save)
  filelist = []
  if pictureType == None:
    filelist = glob.glob(os.path.join(path, '*.jpg'))
  else:
    for i in pictureType:
      filelist.extend(glob.glob(os.path.join(path, '*.'+i)))
  maxw = 0
  maxh = 0
  if sizeMode == None or sizeMode == 0:
    for i in filelist:
      im = Image.open(i)
      if maxw < im.size[0]:
        maxw = im.size[0]
      if maxh < im.size[1]:
        maxh = im.size[1]
  elif sizeMode == 1:
    maxw = 999999
    maxh = 999999
    for i in filelist:
      im = Image.open(i)
      if maxw > im.size[0]:
        maxw = im.size[0]
      if maxh > im.size[1]:
        maxh = im.size[1]
  else:
    if width == None or height == None:
      raise Exception("no width or height provid")
    maxw = width
    maxh = height
  maxsize = (maxw,maxh)
  if save == None:
    filename_pdf = path + path.split('/')[-2]
  else:
    filename_pdf = save + path.split('/')[-2]
  filename_pdf = filename_pdf + '.pdf'
  c = canvas.Canvas(filename_pdf, pagesize=maxsize )
  l = len(filelist)
  for i in range(l):
    (w, h) =maxsize
    width, height = letter
    if fit == True:
      c.drawImage(filelist[i] , 0,0)
    else:
      c.drawImage(filelist[i] , 0,0,maxw,maxh)
    c.showPage()
  c.save()
def main():
  topdf(u'F:/gitplace/jpg2pdf/test',pictureType=['png','jpg'],save='F:/gitplace/jpg2pdf/test/新建文件夾')
if __name__ == '__main__':
  main()

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