How to Convert RTF to JPEG Using Python

How to Convert RTF to JPEG Using Python

Converting Rich Text Format (RTF) files to JPEG images programmatically can be useful for generating thumbnails, embedding formatted text in images, or automating document processing. In this guide, we'll explore how to achieve this using Python with the most popular and widely used libraries.


Prerequisites

Before we begin, ensure you have the following installed:

  • Python 3.6 or later
  • pypandoc (for RTF to HTML conversion)
  • imgkit (for HTML to JPEG conversion)
  • wkhtmltopdf (required by imgkit for rendering)

Install the necessary Python packages using pip:

pip install pypandoc imgkit

Download and install wkhtmltopdf from the official website.


Step-by-Step Conversion Process

1. Convert RTF to HTML

First, we'll use pypandoc to convert the RTF file to HTML, which preserves formatting:

import pypandoc

# Convert RTF to HTML
html_content = pypandoc.convert_file('input.rtf', 'html', outputfile="temp.html")

2. Convert HTML to JPEG

Next, we'll use imgkit to render the HTML as a JPEG image:

import imgkit

# Configure imgkit with wkhtmltopdf path (adjust based on your installation)
config = imgkit.config(wkhtmltoimage='C:/Program Files/wkhtmltopdf/bin/wkhtmltoimage.exe')

# Convert HTML to JPEG
imgkit.from_file('temp.html', 'output.jpg', config=config)

Complete Python Script

Here’s the full script to convert RTF to JPEG in one go:

import pypandoc
import imgkit
import os

def rtf_to_jpeg(rtf_path, jpeg_path):
    # Convert RTF to HTML
    html_content = pypandoc.convert_file(rtf_path, 'html', outputfile="temp.html")
    
    # Configure imgkit (update path as needed)
    config = imgkit.config(wkhtmltoimage='C:/Program Files/wkhtmltopdf/bin/wkhtmltoimage.exe')
    
    # Convert HTML to JPEG
    imgkit.from_file('temp.html', jpeg_path, config=config)
    
    # Clean up temporary HTML file
    os.remove('temp.html')

# Usage
rtf_to_jpeg('input.rtf', 'output.jpg')

Troubleshooting Tips

  • If pypandoc fails, ensure pandoc is installed on your system.
  • For imgkit errors, verify the wkhtmltopdf path is correct.
  • Adjust image quality or dimensions by passing options to imgkit (e.g., options={'quality': 100}).

Summary: This guide demonstrates how to convert RTF files to JPEG images using Python with pypandoc and imgkit. The method preserves text formatting and is ideal for automation.

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