如何将大量的ppt格式的文件批量转化为pptx格式的文件呢。
如果只有一两个，我们可以通过高版本的powerpoint软件直接打开ppt然后另存为pptx格式即可，但是如果是几百上千个文件，估计大部分人都会来找工具了。
我们可以通过python来调用本地的powerpoint来另存，代替我们手工保存。
在github上找了一个工具，可以支持ppt转pptx 或 pptx转ppt pdf png 等格式。
app.py
# 安装reportlab模块
pip3 install reportlab将以下内容复制，保存在app.py文件中，当然，前提需要安装python环境，我本地安装的3.x .
# -*- coding: utf-8 -*-
"""
@author: liuzhiwei
@Date: 2020/11/15
"""
import os
import logging
from reportlab.lib.pagesizes import A4, landscape
from reportlab.pdfgen import canvas
import win32com.client
logger = logging.getLogger('Sun')
logging.basicConfig(level=20,
# format="[%(name)s][%(levelname)s][%(asctime)s] %(message)s",
format="[%(levelname)s][%(asctime)s] %(message)s",
datefmt='%Y-%m-%d %H:%M:%S' # 注意月份和天数不要搞乱了，这里的格式化符与time模块相同
)
def getFiles(dir, suffix, ifsubDir=True): # 查找根目录，文件后缀
res = []
for root, directory, files in os.walk(dir): # =>当前根,根下目录,目录下的文件
for filename in files:
name, suf = os.path.splitext(filename) # =>文件名,文件后缀
if suf.upper() == suffix.upper():
res.append(os.path.join(root, filename)) # =>吧一串字符串组合成路径
if False is ifsubDir:
break
return res
class pptTrans:
def __init__(self, infoDict, filePath):
self.infoDict = infoDict
self.filePath = filePath
self.powerpoint = None
self.init_powerpoint()
self.convert_files_in_folder(self.filePath)
self.quit()
os.system('pause')
def quit(self):
if None is not self.powerpoint:
self.powerpoint.Quit()
def init_powerpoint(self):
try:
self.powerpoint = win32com.client.DispatchEx("Powerpoint.Application")
self.powerpoint.Visible = 2
except Exception as e:
logger.error(str(e))
def ppt_trans(self, inputFileName):
# https://docs.microsoft.com/en-us/office/vba/api/powerpoint.ppsaveasfiletype
infoDict = self.infoDict
formatType = infoDict['formatType']
outputFileName = self.getNewFileName(infoDict['name'], inputFileName)
if '' == outputFileName:
return
inputFileName = inputFileName.replace('/', '\\')
outputFileName = outputFileName.replace('/', '\\')
if '' == outputFileName:
return
if None is self.powerpoint:
return
powerpoint = self.powerpoint
logger.info('开始转换：[{0}]'.format(inputFileName))
deck = powerpoint.Presentations.Open(inputFileName)
try:
deck.SaveAs(outputFileName, formatType) # formatType = 32 for ppt to pdf
logger.info('转换完成：[{0}]'.format(outputFileName))
except Exception as e:
logger.error(str(e))
deck.Close()
def convert_files_in_folder(self, filePath):
if True is os.path.isdir(filePath):
dirPath = filePath
files = os.listdir(dirPath)
pptfiles = [f for f in files if f.endswith((".ppt", ".pptx"))]
elif True is os.path.isfile(filePath):
pptfiles = [filePath]
else:
self.logError('不是文件夹，也不是文件')
return
for pptfile in pptfiles:
fullpath = os.path.join(filePath, pptfile)
self.ppt_trans(fullpath)
def getNewFileName(self, newType, filePath):
try:
dirPath = os.path.dirname(filePath)
baseName = os.path.basename(filePath)
fileName = baseName.rsplit('.', 1)[0]
suffix = baseName.rsplit('.', 1)[1]
if newType == suffix:
logger.warning('文档[{filePath}]类型和需要转换的类型[{newType}]相同'.format(filePath=filePath, newType=newType))
return ''
newFileName = '{dir}/{fileName}.{suffix}'.format(dir=dirPath, fileName=fileName, suffix=newType)
if os.path.exists(newFileName):
newFileName = '{dir}/{fileName}_new.{suffix}'.format(dir=dirPath, fileName=fileName, suffix=newType)
return newFileName
except Exception as e:
logger.error(str(e))
return ''
class pngstoPdf:
def __init__(self, infoDict, filePath):
self.infoDict = infoDict
self.powerpoint = None
self.init_powerpoint()
self.convert_files_in_folder(filePath)
self.quit()
os.system('pause')
def quit(self):
if None is not self.powerpoint:
self.powerpoint.Quit()
def init_powerpoint(self):
try:
self.powerpoint = win32com.client.DispatchEx("Powerpoint.Application")
self.powerpoint.Visible = 2
except Exception as e:
logger.error(str(e))
def ppt_trans(self, inputFileName):
# https://docs.microsoft.com/en-us/office/vba/api/powerpoint.ppsaveasfiletype
infoDict = self.infoDict
formatType = infoDict['formatType']
outputFileName = self.getNewFolderName(inputFileName)
if '' == outputFileName:
return ''
inputFileName = inputFileName.replace('/', '\\')
outputFileName = outputFileName.replace('/', '\\')
if '' == outputFileName:
return ''
if None is self.powerpoint:
return ''
powerpoint = self.powerpoint
logger.info('开始转换：[{0}]'.format(inputFileName))
deck = powerpoint.Presentations.Open(inputFileName)
try:
deck.SaveAs(outputFileName, formatType)
logger.info('转换完成：[{0}]'.format(outputFileName))
except Exception as e:
logger.error(str(e))
return ''
deck.Close()
return outputFileName
def convert_files_in_folder(self, filePath):
if True is os.path.isdir(filePath):
dirPath = filePath
files = os.listdir(dirPath)
pptfiles = [f for f in files if f.endswith((".ppt", ".pptx"))]
elif True is os.path.isfile(filePath):
pptfiles = [filePath]
else:
self.logError('不是文件夹，也不是文件')
return
for pptfile in pptfiles:
fullpath = os.path.join(filePath, pptfile)
folderName = self.ppt_trans(fullpath)
try:
self.png_to_pdf(folderName)
except Exception as e:
logger.error(str(e))
for file in os.listdir(folderName):
os.remove('{0}\\{1}'.format(folderName, file))
os.rmdir(folderName)
def png_to_pdf(self, folderName):
picFiles = getFiles(folderName, '.png')
pdfName = self.getFileName(folderName)
'''多个图片合成一个pdf文件'''
(w, h) = landscape(A4) #
cv = canvas.Canvas(pdfName, pagesize=landscape(A4))
for imagePath in picFiles:
cv.drawImage(imagePath, 0, 0, w, h)
cv.showPage()
cv.save()
def getFileName(self, folderName):
dirName = os.path.dirname(folderName)
folder = os.path.basename(folderName)
return '{0}\\{1}.pdf'.format(dirName, folder)
def getNewFolderName(self, filePath):
index = 0
try:
dirPath = os.path.dirname(filePath)
baseName = os.path.basename(filePath)
fileName = baseName.rsplit('.', 1)[0]
newFileName = '{dir}/{fileName}'.format(dir=dirPath, fileName=fileName)
while True:
if os.path.exists(newFileName):
newFileName = '{dir}/{fileName}({index})'.format(dir=dirPath, fileName=fileName, index=index)
index = index + 1
else:
break
return newFileName
except Exception as e:
logger.error(str(e))
return ''
if __name__ == "__main__":
transDict = {}
transDict.update({1: {'name': 'pptx', 'formatType': 11}})
transDict.update({2: {'name': 'ppt', 'formatType': 1}})
transDict.update({3: {'name': 'pdf', 'formatType': 32}})
transDict.update({4: {'name': 'png', 'formatType': 18}})
transDict.update({5: {'name': 'pdf(不可编辑)', 'formatType': 18}})
hintStr = ''
for key in transDict:
hintStr = '{src}{key}:->{type}\n'.format(src=hintStr, key=key, type=transDict[key]['name'])
while True:
print(hintStr)
transFerType = int(input("转换类型:"))
if None is transDict.get(transFerType):
logger.error('未知类型')
else:
infoDict = transDict[transFerType]
path = input("文件路径:")
if 5 == transFerType:
pngstoPdf(infoDict, path)
else:
op = pptTrans(infoDict, path)然后执行命令，选择序号，输入文件夹路径即可。
python app.py 静静等待程序自动转化即可。
