PDF 转 PPTX

Posted 2020-11-28 maxuewei2

用途

• beamer 转 PPTX
• marp 转 PPTX
• PPTX 导出的 PDF 再转为高清图片档 PPTX

过程

• 将 PDF 文档导出为 PNG 图片，每页一张。
• 每张 PNG 作为一张 slide，做成一个 PPTX 文档。

安装及代码

主要用到

• python-pptx，pip install python-pptx
• pdftk
• pdftoppm

用法：python pdf_to_pptx.py test.pdf

pdf_to_pptx.py：

# encoding: UTF-8

# pip install python-pptx
# https://python-pptx.readthedocs.io/
# need pdftk, pdftoppm installed
import sys
import os
import re
from pptx import Presentation
from pptx.util import Inches
from pptx.parts.image import Image 

pdf_name = sys.argv[1]

os.system(‘mkdir -p png_tmps‘)
# dump pdf meta-data to get number of pages 
os.system(‘pdftk {} dump_data_utf8 output data.txt‘.format(pdf_name))
data_content = open(‘data.txt‘).read()
groups = re.findall(‘NumberOfPages: (d+)‘, data_content)
page_num = int(groups[0])
print(‘#pages:‘, page_num)

prs = Presentation()
prs_width = prs.slide_width
blank_slide_layout = prs.slide_layouts[6]

for i in range(page_num):
    os.system(‘pdftoppm {}  png_tmps/{} -png -f {} -singlefile -r 500‘.format(pdf_name, i+1, i+1))
    img_path = ‘png_tmps/{}.png‘.format(i+1)
    img = Image.from_file(img_path)
    print(i+1)
    
    slide = prs.slides.add_slide(blank_slide_layout)
    left = top = Inches(0)
    pic = slide.shapes.add_picture(img_path, left, top, width=prs_width)

prs.save(‘test.pptx‘)

END

2020.5.10 晚22:13