Extract PNG Images From PDFs

I have a collection of PDFs that contain images I need pulled out and saved individually. Every extracted image must be delivered in PNG format at a consistent 150 DPI so they slot straight into my current design workflow without any extra conversion on my side.

You can use whichever reliable tools you prefer—Adobe Acrobat, Photoshop, command-line utilities, or specialized PDF extractors—as long as the end files meet those two specs: PNG and 150 DPI. Please keep filenames clear and sequential so I can match them back to the source pages easily.

Deliverables:
• Separate PNG files for every image found in each PDF, all at 150 DPI
• A simple index (spreadsheet or text) that notes the original PDF name and page number for each exported image

I’ll supply the PDFs as soon as we start. Let me know if you need a sample to confirm settings before running the full batch.