批量截取在线阅读的电子书并保存为PDF的python脚本
时间: 2024-10-07 14:00:36 浏览: 28
批量截取在线阅读的电子书并保存为PDF的Python脚本通常会涉及网络抓取、屏幕截图(可能通过Selenium或PIL库)、图片合并(例如使用PIL的Image模块),以及PDF生成(可以使用如PyPDF2或weasyprint)。由于每个步骤都有一定的复杂性,以下是一个简化版的示例,假设我们已经获取到了页面的源代码并且包含有每页的图片URL:
```python
import requests
from PIL import Image
from io import BytesIO
import PyPDF2
def get_image(url):
response = requests.get(url)
image = Image.open(BytesIO(response.content))
return image
def merge_images(images):
width, height = images[0].size
merged = Image.new('RGB', (width * len(images), height))
for i, img in enumerate(images):
merged.paste(img, (i * width, 0))
return merged
def save_to_pdf(screenshot_list, output_filename):
pdf_pages = []
for screenshot in screenshot_list:
pdf_pages.append(PyPDF2.PdfFileWriter())
page = screenshot.convert('RGB')
pdf_page = PdfPages(output_filename)
pdf_page.add_page(page)
pdf_pages[-1] = pdf_page
pdf_writer = PyPDF2.PdfFileMerger()
for page in pdf_pages:
pdf_writer.append(page)
pdf_writer.write(output_filename)
# 假设有个列表存储了每一页的图片URL
image_urls = ['http://example.com/page_1.jpg', 'http://example.com/page_2.jpg']
# 截图并合并所有页面
screenshot_list = [get_image(url) for url in image_urls]
merged_image = merge_images(screenshot_list)
# 将合并后的图像保存为PDF
save_to_pdf([merged_image], 'output.pdf')
```
这个例子相当基础,实际应用中可能需要考虑更多因素,比如多线程处理以提高效率,处理JavaScript渲染的内容,以及错误处理。
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