Step-by-Step Guide to Convert LaTeX to BMP with Python via .NET

convert_latex_to_bmp_complete_code_example.py

import sys
import clr
import os

# Add reference to the Aspose.TeX .NET assembly
clr.AddReference("Aspose.TeX")
from Aspose.TeX import TeXDocument, RenderingOptions, ImageFormat

def render_latex_to_bmp(latex_path: str, output_path: str):
    try:
        # Verify input file exists
        if not os.path.isfile(latex_path):
            raise FileNotFoundError(f"Input file not found: {latex_path}")

        # Load LaTeX source from file
        with open(latex_path, "r", encoding="utf-8") as file:
            latex_content = file.read()

        # Create a TeXDocument object
        tex_doc = TeXDocument(latex_content)

        # Set rendering options
        options = RenderingOptions()
        options.Dpi = 300               # High resolution
        options.ImageFormat = ImageFormat.Bmp
        options.BackgroundColor = System.Drawing.Color.White

        # Render to bitmap
        bitmap = tex_doc.RenderToBitmap(options)

        # Save the bitmap as BMP
        bitmap.Save(output_path, ImageFormat.Bmp)
        print(f"Successfully rendered BMP: {output_path}")

    except Exception as ex:
        print(f"Error during conversion: {ex}", file=sys.stderr)
        sys.exit(1)

if __name__ == "__main__":
    # Example usage:
    # python render_latex.py input.tex output.bmp
    if len(sys.argv) != 3:
        print("Usage: python render_latex.py <input.tex> <output.bmp>")
        sys.exit(1)

    input_file = sys.argv[1]
    output_file = sys.argv[2]
    render_latex_to_bmp(input_file, output_file)