Product Image Background Removal Needed

I have a batch of e-commerce product photos that need to be stripped of their existing backgrounds and delivered back to me on a pure white backdrop. Precision is crucial: every edge must be crisp, with no halos or jagged lines, and any fine details around curves or small cut-outs have to remain intact. Please use accurate clipping paths or advanced masking—whichever gives the cleanest results. Besides the background removal, I’d like a subtle soft shadow or drop shadow added so each item looks grounded rather than floating. No further retouching or colour work is necessary. Deliverables • High-resolution JPG files with a pure white background (final pixel dimensions will match the originals). Turnaround Once I supply the raw images—expect anywhere from 20 to 100 files—I’ll need the finished set back within 24–48 hours. If you can show one sample first so we confirm style, that would be ideal before you process the full batch. If you’re confident you can deliver flawless cut-outs quickly, I’d love to work with you.