Build a PDF Merger Tool in Python – Beginner Automation Project

🧩 Build a PDF Merger Tool in Python – Beginner Automation Project

In this blog post, I'll show you how to build a simple yet useful tool in Python that merges multiple PDF files into one. It's a great automation project for beginners.

🔧 Tech Stack

• Python 3
• PyPDF2 library

✨ Features

• Merge unlimited PDFs in one click
• Clean and beginner-friendly code
• No external GUI required

📂 Project Structure

pdf-merger/
├── merger.py
├── requirements.txt
└── README.md

🧠 Code Explanation

merger.py – This is the main script that scans all PDF files in the current folder and merges them into one:

import os
from PyPDF2 import PdfMerger

def merge_pdfs(pdf_list, output_filename):
    merger = PdfMerger()
    for pdf in pdf_list:
        merger.append(pdf)
    merger.write(output_filename)
    merger.close()
    print(f"✅ Merged PDF saved as: {output_filename}")

if __name__ == "__main__":
    files = [f for f in os.listdir() if f.endswith('.pdf')]
    print("📄 PDFs found:", files)
    merge_pdfs(files, "merged_output.pdf")

⚙️ How to Run

1. Install dependencies:

   pip install PyPDF2

2. Place all your PDF files in the same folder as merger.py
3. Run the script:

   python merger.py

4. Check the output: merged_output.pdf

🔗 GitHub Link

👉 View on GitHub

✅ Conclusion

This project helped me practice file handling, automation, and working with external libraries in Python. In the future, I plan to add a GUI using Tkinter or allow drag-and-drop functionality.

📌 Tags:

Python, Automation, PDF, Beginner Project, PyPDF2, Developer Portfolio