INIT

Dockerfile

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+
+FROM python:3.11-slim
+
+# set the working directory
+WORKDIR /app
+RUN mkdir /app/uploads
+RUN mkdir /app/split
+RUN apt-get update
+
+# install dependencies
+COPY ./requirements.txt /app
+RUN pip install --trusted-host pypi.org --trusted-host pypi.python.org --trusted-host files.pythonhosted.org --no-cache-dir --upgrade -r requirements.txt
+
+# copy the scripts to the folder
+COPY . /app
+
+CMD ["bash", "init.sh"]

app.py

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+from flask import Flask, render_template, request, redirect, url_for, jsonify, send_from_directory
+import os
+from PyPDF2 import PdfReader, PdfWriter
+
+from pathlib import Path
+import shutil
+import os
+
+app = Flask(__name__)
+
+UPLOAD_FOLDER = 'uploads'
+app.config['UPLOAD_FOLDER'] = UPLOAD_FOLDER
+
+@app.route('/')
+def index():
+    return render_template('index.html')
+
+@app.route('/split/<path:path>')
+def send_report(path):
+    return send_from_directory('split', path)
+
+@app.route('/split', methods=['POST'])
+def split_file():
+    if 'pdf' not in request.files:
+        return redirect(request.url)
+
+    pdf_file = request.files['pdf']
+
+    if pdf_file.filename == '':
+        return redirect(request.url)
+
+    if pdf_file:
+        in_filename = pdf_file.filename
+        filename = os.path.join(app.config['UPLOAD_FOLDER'], pdf_file.filename)
+        pdf_file.save(filename)
+        
+
+        out_filenames = []
+        Path("/tmp/split_pdf").mkdir(parents=True, exist_ok=True)
+        # Process the PDF file (e.g., extract text)
+        with open(filename, 'rb') as pdf_file:
+            pdf_reader = PdfReader(pdf_file)
+            num_pages = len(pdf_reader.pages)
+            text = ''
+            for page_num in range(num_pages):
+
+                writer = PdfWriter()
+                writer.add_page(pdf_reader.pages[page_num])
+
+                out_filename = '/tmp/split_pdf/' + in_filename + '_' + str(page_num) + '.pdf'
+                with open(out_filename, 'wb') as outfile:
+                    writer.write(outfile)
+                    out_filenames.append(out_filename)
+
+        shutil.make_archive(in_filename.rsplit('.', 1)[0] + '_splitted', 'zip', "/tmp/split_pdf")
+        zip_filename = in_filename.rsplit('.', 1)[0] + "_splitted.zip"
+        os.rename("/app/" + zip_filename, "/app/split/" + zip_filename)
+
+        for temp_file in out_filenames:
+            Path.unlink(temp_file)
+
+        response = jsonify({"url": "/split/" + zip_filename, "name": zip_filename})
+        # response.headers.add("Access-Control-Allow-Origin", "*")
+        return response
+
+if __name__ == '__main__':
+    app.run(debug=True)

docker-compose.yaml

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+################################################################
+#
+#   Development:
+#   nodemon.cmd --ext '*' --exec docker-compose up --build pdf-web-toolkit
+#
+#   docker build -t pdf-web-toolkit .
+#   docker run -p 8001:8000 -i -t pdf-web-toolkit
+################################################################
+
+version: "3"
+
+# networks:
+#   pdf-web-toolkit-network:
+
+services:
+  pdf-web-toolkit:
+    build: ./
+    container_name: pdf-web-toolkit
+    restart: always
+#    networks:
+#      - pdf-web-toolkit-network
+    command: >
+      sh -c "
+        ./init.sh
+        "
+    ports:
+      - 8001:8000
+
+

init.sh

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+#!/bin/bash
+
+# (cd /app/ && gunicorn --access-logfile '-' --error-logfile '-' -w 4 -b 0.0.0.0:8000 wsgi:app) # Dev (Logging to console)
+(cd /app/ && gunicorn -w 4 -b 0.0.0.0:8000 wsgi:app)
+
+/bin/bash

requirements.txt

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+flask
+PyPDF2
+gunicorn

static/icons/filetype-pdf.svg

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+<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-filetype-pdf" viewBox="0 0 16 16">
+  <path fill-rule="evenodd" d="M14 4.5V14a2 2 0 0 1-2 2h-1v-1h1a1 1 0 0 0 1-1V4.5h-2A1.5 1.5 0 0 1 9.5 3V1H4a1 1 0 0 0-1 1v9H2V2a2 2 0 0 1 2-2h5.5L14 4.5ZM1.6 11.85H0v3.999h.791v-1.342h.803c.287 0 .531-.057.732-.173.203-.117.358-.275.463-.474a1.42 1.42 0 0 0 .161-.677c0-.25-.053-.476-.158-.677a1.176 1.176 0 0 0-.46-.477c-.2-.12-.443-.179-.732-.179Zm.545 1.333a.795.795 0 0 1-.085.38.574.574 0 0 1-.238.241.794.794 0 0 1-.375.082H.788V12.48h.66c.218 0 .389.06.512.181.123.122.185.296.185.522Zm1.217-1.333v3.999h1.46c.401 0 .734-.08.998-.237a1.45 1.45 0 0 0 .595-.689c.13-.3.196-.662.196-1.084 0-.42-.065-.778-.196-1.075a1.426 1.426 0 0 0-.589-.68c-.264-.156-.599-.234-1.005-.234H3.362Zm.791.645h.563c.248 0 .45.05.609.152a.89.89 0 0 1 .354.454c.079.201.118.452.118.753a2.3 2.3 0 0 1-.068.592 1.14 1.14 0 0 1-.196.422.8.8 0 0 1-.334.252 1.298 1.298 0 0 1-.483.082h-.563v-2.707Zm3.743 1.763v1.591h-.79V11.85h2.548v.653H7.896v1.117h1.606v.638H7.896Z"/>
+</svg>

templates/index.html

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+<!DOCTYPE html>
+<html>
+<head>
+    <title>PDF Splitter</title>
+    <link rel="shortcut icon" href="/static/icons/filetype-pdf.svg" type="image/x-icon">
+</head>
+<body>
+    <h1>PDF Splitter</h1>
+    <input type="file" id="pdfFile" accept=".pdf"><br>
+    <button onclick="uploadPDF()">Split PDF into individual pages</button>
+    <div id="output"></div>
+
+    <script>
+        function downloadURI(uri, name) {
+            var link = document.createElement("a");
+            link.download = name;
+            link.href = uri;
+            document.body.appendChild(link);
+            link.click();
+            document.body.removeChild(link);
+            delete link;
+        }
+
+        function uploadPDF() {
+            const fileInput = document.getElementById('pdfFile');
+            const file = fileInput.files[0];
+            const formData = new FormData();
+            formData.append('pdf', file);
+
+            const backendURL = '/split';
+
+            fetch(backendURL, {
+                method: 'POST',
+                body: formData
+            })
+            .then(response => response.json())
+            .then(data => {
+                console.debug("data from Backend: ", data)
+                downloadURI(data["url"], data["name"]);
+            })
+            .catch(error => console.error(error));
+        }
+    </script>
+</body>
+</html>

wsgi.py

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+from app import app  # Import your Flask app from app.py
+
+if __name__ == "__main__":
+    app.run()