python ppt转pdf以及图片提取
采用com唤起 ppt进行转pdf，从pdf中提取图片
- 安装
pip instamm PyMuPDF
pip install comtypes- code
import os
import shutil
import comtypes.client
import fitz
# 逻辑
'''
1. 根据输入的文件夹提取ppt，转成pdf
2. pdf保留和ppt一样的文件夹结构
3. 从pdf提取图片，保留一样的结构，以ppt文件名命名文件夹'''def ensure_dir(path):if not os.path.exists(path):os.makedirs(path)def ppt_to_pdf(ppt_path, pdf_path):powerpoint = comtypes.client.CreateObject("PowerPoint.Application")powerpoint.Visible = 1try:presentation = powerpoint.Presentations.Open(ppt_path, WithWindow=False)presentation.SaveAs(pdf_path, 32) # 保存为PDFpresentation.Close()finally:powerpoint.Quit()# 从pdf中提取图片，保存在文件名目录下
def extract_images_from_pdf(pdf_path, image_dir):ensure_dir(image_dir)doc = fitz.open(pdf_path)img_count = 0for page_index in range(len(doc)):page = doc.load_page(page_index)for img_index, img in enumerate(page.get_images(full=True), start=1):xref = img[0]base_image = doc.extract_image(xref)image_bytes = base_image["image"]image_ext = base_image["ext"]image_name = f"page{page_index+1:03d}_img{img_index:03d}.{image_ext}"image_path = os.path.join(image_dir, image_name)with open(image_path, "wb") as f:f.write(image_bytes)img_count += 1doc.close()return img_count# 遍历整个文件夹
def process_ppt_directory(src_root, dst_root,error_dir):for root, dirs, files in os.walk(src_root):rel_path = os.path.relpath(root, src_root)target_dir = os.path.join(dst_root, rel_path)error_dir = os.path.join(error_dir, rel_path)ensure_dir(target_dir)for file in files:if file.lower().endswith(('.ppt', '.pptx')):ppt_path = os.path.join(root, file)base_name = os.path.splitext(file)[0]pdf_path = os.path.join(target_dir, base_name + ".pdf")image_dir = os.path.join(target_dir, base_name + "_images")print(f"▶ 转换: {ppt_path}")try:ppt_to_pdf(ppt_path, pdf_path)print(f" ✅ 生成 PDF: {pdf_path}")except Exception as e:print(f"❌ PPT {ppt_path} 转 PDF 失败: {e}")ensure_dir(error_dir)shutil.copy2(ppt_path, error_dir)print(f" ⚠️ 已复制失败文件到: {error_dir}")continuetry:count = extract_images_from_pdf(pdf_path, image_dir)print(f" ✅ 提取图片 {count} 张 → {image_dir}")except Exception as e:print(f"❌ PDF {pdf_path} 提取图片失败: {e}")ensure_dir(error_dir)shutil.copy2(ppt_path, error_dir)print(f" ⚠️ 已复制失败文件到: {error_dir}")if __name__ == "__main__":src_dir = r"C:\Users\84977\Desktop\ceshi" # ppt目录dst_dir = r"C:\Users\84977\Desktop\123" # 输出目录error_dir = r"C:\Users\84977\Desktop\345" # 失败的目录process_ppt_directory(src_dir, dst_dir, error_dir)