我们在网上搜集的一些电子版资料多数是pdf格式，一些无良培训机构或者自媒体为了博取眼球、引流、会在倒手过程使用一些程式对一些文档进行批量添加水印，或者联系，以此原本干净整洁资料满屏“牛皮藓”，简直是糟糕透了！
from flask import Flask, request, send_file, render_template_string, jsonify
from PyPDF2 import PdfReader, PdfWriter
import os
from pdf2image import convert_from_path
import io
import base64app = Flask(__name__)# 根 URL 路由
@app.route('/')
def index():return render_template_string('''<!DOCTYPE html><html><head><title>PDF Page Manager</title><style>body {font-family: Arial, sans-serif;}.grid-container {display: grid;grid-template-columns: repeat(5, 1fr);grid-gap: 10px;margin-bottom: 20px;}.grid-item {text-align: center;}.grid-item img {max-width: 100%;height: auto;}.grid-item input[type="checkbox"] {margin-top: 5px;}</style></head><body><h1>Select Pages to Delete</h1><div id="pageContainer"></div><button onclick="loadPages()">Load Pages</button><button onclick="submitForm()">Submit</button><script>function loadPages() {fetch('/get-pages', { method: 'GET' }).then(response => response.json()).then(data => {const container = document.getElementById('pageContainer');container.innerHTML = ''; // 清空容器data.pages.forEach((page, index) => {const item = document.createElement('div');item.className = 'grid-item';const img = document.createElement('img');img.src = `data:image/png;base64,${page.image}`;img.alt = `Page ${index + 1}`;const checkbox = document.createElement('input');checkbox.type = 'checkbox';checkbox.name = 'page';checkbox.value = index;const label = document.createElement('label');label.htmlFor = `page${index}`;label.appendChild(document.createTextNode(`Page ${index + 1}`));item.appendChild(img);item.appendChild(checkbox);item.appendChild(label);container.appendChild(item);});});}function submitForm() {const checkboxes = document.querySelectorAll('input[type=checkbox]:checked');const selectedPages = Array.from(checkboxes).map(checkbox => checkbox.value);fetch('/merge-pdf', {method: 'POST',headers: {'Content-Type': 'application/json'},body: JSON.stringify({ selected_pages: selectedPages })}).then(response => {if (response.ok) {alert('PDF has been modified and saved.');} else {alert('An error occurred while modifying the PDF.');}});}</script></body></html>''')@app.route('/get-pages', methods=['GET'])
def get_pages():file_path = r"D:\daku\python编辑pdf\2024年县域未成年人网络消费调研报告-佟毕铖.pdf"try:images = convert_from_path(file_path)page_data = []for i, image in enumerate(images):buffered = io.BytesIO()image.save(buffered, format="PNG")img_str = base64.b64encode(buffered.getvalue()).decode('utf-8')page_data.append({'index': i, 'image': img_str})return jsonify({'pages': page_data})except Exception as e:return jsonify({'error': str(e)}), 500@app.route('/merge-pdf', methods=['POST'])
def merge_pdf():data = request.jsonselected_pages = data.get('selected_pages', [])file_path = r"D:\daku\python编辑pdf\2024年县域未成年人网络消费调研报告-佟毕铖.pdf"reader = PdfReader(file_path)writer = PdfWriter()for page_num in range(len(reader.pages)):if str(page_num) not in selected_pages:writer.add_page(reader.pages[page_num])output_path = r"D:\daku\python编辑pdf\output\modified_report.pdf"os.makedirs(os.path.dirname(output_path), exist_ok=True)with open(output_path, 'wb') as f:writer.write(f)return send_file(output_path, as_attachment=True)if __name__ == '__main__':app.run(debug=True)网页端代码：
<!DOCTYPE html>
<html>
<head><title>PDF Page Manager</title><style>body {font-family: Arial, sans-serif;}.grid-container {display: grid;grid-template-columns: repeat(5, 1fr);grid-gap: 10px;margin-bottom: 20px;}.grid-item {text-align: center;}.grid-item img {max-width: 100%;height: auto;}.grid-item input[type="checkbox"] {margin-top: 5px;}</style>
</head>
<body><h1>Select Pages to Delete</h1><div id="pageContainer"></div><button onclick="loadPages()">Load Pages</button><button onclick="submitForm()">Submit</button><script>function loadPages() {fetch('/get-pages', { method: 'GET' }).then(response => response.json()).then(data => {const container = document.getElementById('pageContainer');container.innerHTML = ''; // 清空容器data.pages.forEach((page, index) => {const item = document.createElement('div');item.className = 'grid-item';const img = document.createElement('img');img.src = `data:image/png;base64,${page.image}`;img.alt = `Page ${index + 1}`;const checkbox = document.createElement('input');checkbox.type = 'checkbox';checkbox.name = 'page';checkbox.value = index;const label = document.createElement('label');label.htmlFor = `page${index}`;label.appendChild(document.createTextNode(`Page ${index + 1}`));item.appendChild(img);item.appendChild(checkbox);item.appendChild(label);container.appendChild(item);});});}function submitForm() {const checkboxes = document.querySelectorAll('input[type=checkbox]:checked');const selectedPages = Array.from(checkboxes).map(checkbox => checkbox.value);fetch('/merge-pdf', {method: 'POST',headers: {'Content-Type': 'application/json'},body: JSON.stringify({ selected_pages: selectedPages })}).then(response => {if (response.ok) {alert('PDF has been modified and saved.');} else {alert('An error occurred while modifying the PDF.');}});}</script>
</body>
</html>通过python抽取指定路径pdf格式文件，进行页面分割，将分割页面载入网页
勾选页脚下方小框框，在最下方点击提交保存就好啦！