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seal
Stamping, cross-page seals and A4 layout — files never leave your machine
seal is a privacy-first online document stamping tool. Save your company seal once for reuse, then stamp JPG / PNG / PDF files by drag and drop — with multiply blending for realistic impressions, cross-page seals for multi-page contracts, cutout-and-arrange A4 layout at 300 DPI for IDs and certificates, and a merged PDF export. Everything runs locally in the browser; no file ever touches a server. Free, no ads.
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Key Features
- Realistic impressions: multiply blending with slight tilt — text shows through the ink
- Cross-page seals: the seal is sliced across page edges to deter page swapping
- PDF end to end: pages imported at 300 DPI, stamped, merged back into one PDF
- A4 layout: cut out IDs and certificates (wand + brush) and drag-arrange them on A4
- Batch stamping: many images at the same relative position; export PNG / JPG / PDF
- Privacy first: fully local processing, zero uploads, free with no ads
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