Free forever vs paid per-use. No uploads, no subscriptions, no account required.
| Feature | PDF Date Stamp & Approval Stamp | Smallpdf |
|---|---|---|
| Price | ✓ Free forever | Free tier limited; Pro from $9.99/mo (~$144/yr) |
| Privacy | ✓ 100% client-side — your files never leave your device | ✗ Files uploaded to their servers |
| Signup required | ✓ None | ✗ Required for many features |
| Date stamp mode | ✓ Yes — multiple formats (MM/DD/YYYY, DD-MM-YYYY, etc.) | ✓ Limited format options |
| Approval stamp mode | ✓ Presets: APPROVED, REJECTED, DRAFT, CONFIDENTIAL + custom text | ✗ Basic stamping only |
| Unlimited stamps | ✓ Yes | ✗ 2 tasks/day free, then pay |
| Custom appearance | ✓ Size, opacity, rotation, color | ✓ Limited options |
| Position modes | ✓ Center, tiled (mosaic), corners | ✗ Basic position only |
| Works offline | ✓ Yes, after first load | ✗ Requires internet |
| No file size limits | ✓ Only your browser's memory | ✗ 50MB limit on free tier |