使用Python实现压缩pptx的功能

pip install python-pptx

import os
from pptx import Presentation
from PIL import Image

def compress_images_in_pptx(pptx_path, output_path, compression_quality=85):
    presentation = Presentation(pptx_path)

    for slide in presentation.slides:
        for shape in slide.shapes:
            if shape.shape_type == 13:  # 13 represents picture shape
                image = shape.image

                # Save the image to a temporary file
                image_path = os.path.join(output_path, image.filename)
                with open(image_path, 'wb') as f:
                    f.write(image._blob)

                # Compress the image
                compressed_image_path = os.path.join(output_path, 'compressed_' + image.filename)
                compress_image(image_path, compressed_image_path, compression_quality)

                # Replace the original image with the compressed image
                with open(compressed_image_path, 'rb') as f:
                    image_data = f.read()

                image._blob = image_data

                # Update the image size
                size = Image.open(compressed_image_path).size
                shape.width, shape.height = size

    output_pptx_path = os.path.join(output_path, 'compressed_presentation.pptx')
    presentation.save(output_pptx_path)
    return output_pptx_path

def compress_image(input_path, output_path, quality):
    image = Image.open(input_path)
    # image.save(output_path, optimize=True, quality=quality)
    image = image.convert("RGB")  # 将图像转换为RGB模式
    image.save(output_path, optimize=True, quality=quality, format='JPEG')
# 指定输入的PPTX文件路径和输出路径
input_pptx = './hanjun.pptx'
output_folder = './new/output'
# 调用函数进行图片压缩并保存压缩后的PPTX文件
compressed_pptx = compress_images_in_pptx(input_pptx, output_folder)

print(f"压缩后的PPTX文件已保存为: {compressed_pptx}")

import gzip

def compress_file(file_path, output_path):
    with open(file_path, 'rb') as file:
        with gzip.open(output_path, 'wb') as output:
            output.write(file.read())

# 压缩文件
compress_file('example.txt', 'example.txt.gz')

import zipfile

def compress_files(file_paths, output_path):
    with zipfile.ZipFile(output_path, 'w') as zip:
        for file_path in file_paths:
            zip.write(file_path)

# 压缩文件
compress_files(['file1.txt', 'file2.txt'], 'files.zip')

import tarfile

def compress_files(file_paths, output_path):
    with tarfile.open(output_path, 'w') as tar:
        for file_path in file_paths:
            tar.add(file_path)

# 压缩文件
compress_files(['file1.txt', 'file2.txt'], 'files.tar')