Create PDF from multiple images in Python

In this tutorial, we will learn how to create a PDF file from multiple images using our favorite language, Python. At times, you feel the need to convert images into PDF files, and then you open the app and select and then convert, or you open the tool available online and then do your work. What if I tell you that you can do it by just running a simple Python code?

Images to PDF conversion

We will require two libraries, reportlab, and Pillow, to handle PDFs and images, respectively. Install it in your system using the below command:

pip install reportlab Pillow

from reportlab.lib.pagesizes import letter
from reportlab.pdfgen import canvas
from PIL import Image

def create_pdf(images, output_file):
    c = canvas.Canvas(output_file, pagesize=letter)

    for img_path in images:
        img = Image.open(img_path)
        width, height = img.size
        c.setPageSize((width, height))
        c.drawImage(img_path, 0, 0, width, height)

        c.showPage()

    c.save()

if __name__ == "__main__":
    images = ["/content/celestial.png", "/content/lion.jpg"]
    output_file = "output.pdf"
    create_pdf(images, output_file)

Explanation

First, we import the page size and canvas from the reportlab library. We are using the letter size in pdf. You can change it as per your choice. Now create the function where you generate canvas from the file and, using .drawImage you copy the image in your pdf file. At last, we save the canvas, and it gets saved in the form of a pdf file.

Also check: Delete empty pages from pdf file in Python, Create a PDF file using pyPdf Python module

Images stored in a directory

If your images are stored in a directory, we can use the os library to access it and you have to change the for loop from the above code. Let’s see the changes:

from reportlab.lib.pagesizes import letter
from reportlab.pdfgen import canvas
from PIL import Image
import os

def create_pdf_from_folder(folder_path, output_file):
    c = canvas.Canvas(output_file, pagesize=letter)

    for filename in os.listdir(folder_path):
        if filename.endswith(".jpg") or filename.endswith(".png"):  # Adjust file extensions as needed
            img_path = os.path.join(folder_path, filename)
            img = Image.open(img_path)
            width, height = img.size
            c.setPageSize((width, height))
            c.drawImage(img_path, 0, 0, width, height)

            c.showPage()

    c.save()

if __name__ == "__main__":
    folder_path = "path/to/your/folder"  # Replace with the path to your folder
    output_file = "output.pdf"
    create_pdf_from_folder(folder_path, output_file)

Here, you can see that we have accessed each image file using the os.path function. Don’t forget to change the path while running the above code.