Remove Dark Marks from PDF

I have a scanned document that I converted to PDF in Adobe Acrobat, but every page still shows distracting dark marks and smudges. I need those blemishes completely removed while keeping the original layout, resolution, text clarity, and page count exactly the same.

You are free to work in Acrobat, Photoshop, ABBYY FineReader, or any other professional cleanup workflow, so long as the final file is crisp, mark-free, and ready for printing or digital distribution.

Deliverables
• A pristine, mark-free PDF matching the original page-for-page
• (Optional) The layered or source file you used, in case I need future tweaks
• A short note outlining the steps you took so I can replicate the process if needed

I’d love a quick turnaround and welcome any questions before you dive in.