Use an online PDF to PNG converter
Upload the PDF file
Select PNG as the output format
Start the conversion
Download the PNG file or files
Use Adobe Acrobat
Open the PDF
Choose Export PDF
Select Image
Select PNG
Save the converted file
Use Preview on Mac
Open the PDF in Preview
Export the page as PNG
Save the image
Use a command-line tool like ImageMagick
Install ImageMagick
Run a convert command on the PDF
Save the output as PNG
Use Python with a library like pdf2image
Install the required library
Convert PDF pages to images
Save each page as a PNG file