Converting multiple images into a single PDF is a convenient and efficient way to organize and share visual content. Whether you have a collection of scanned documents, photographs, or digital images, consolidating them into a single PDF file simplifies the process of archiving, emailing, or distributing them. By merging images into a PDF format, you can preserve image quality, reduce file size, and maintain the sequence of the original images. In this article, you will learn how to convert images to PDF in Python using Spire.PDF for Python.

Install Spire.PDF for Python

This scenario requires Spire.PDF for Python and plum-dispatch v1.7.4. They can be easily installed in your Windows through the following pip command.

pip install Spire.PDF

If you are unsure how to install, please refer to this tutorial: How to Install Spire.PDF for Python on Windows

Convert Multiple Images into a Single PDF Document in Python

In order to convert all the images in a folder to a PDF, we iterate through each image, add a new page to the PDF with the same size as the image, and then draw the image onto the new page. The following are the detailed steps.

• Create a PdfDocument object.
• Set the page margins to zero using PdfDocument.PageSettings.SetMargins() method.
• Get the folder where the images are stored.
• Iterate through each image file in the folder, and get the width and height of a specific image.
• Add a new page that has the same width and height as the image to the PDF document using PdfDocument.Pages.Add() method.
• Draw the image on the page using PdfPageBase.Canvas.DrawImage() method.
• Save the document using PdfDocument.SaveToFile() method.

from spire.pdf.common import *
from spire.pdf import *
import os

# Create a PdfDocument object
doc = PdfDocument()

# Set the page margins to 0
doc.PageSettings.SetMargins(0.0)

# Get the folder where the images are stored
path = 'C:/Users/Administrator/Desktop/Images/'
files = os.listdir(path)

# Iterate through the files in the folder
for root, dirs, files in os.walk(path):
    for file in files:

        # Load a particular image 
        image = PdfImage.FromFile(os.path.join(root, file))
    
        # Get the image width and height
        width = image.PhysicalDimension.Width
        height = image.PhysicalDimension.Height

        # Add a page that has the same size as the image
        page = doc.Pages.Add(SizeF(width, height))

        # Draw image at (0, 0) of the page
        page.Canvas.DrawImage(image, 0.0, 0.0, width, height)
      
# Save to file
doc.SaveToFile('output/ConvertImagesToPdf.pdf')
doc.Dispose();

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