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PDF SealBox

Browser PDF tools for stamps and document tasks

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Add visible stamps and seam marks, number pages, watermark and split PDFs, combine images into a PDF, or export PDF pages as images. Preview changes and download a separate result. Visible marks do not provide certificate-based signing.

PH · launched Oct 19, 2026 · 1 upvote (top 67%) · 1 view

Niche: browser-based pdf tools · 442 launches, 36 in the last 7 days ▼ -32% · Explore this niche →

Category and tags
  • Horizontal
  • Workflow automation
  • B2C
  • Not AI
  • Commercial product
  • Productivity

Visit website ↗ Source listing ↗

More like this: all 442 launches in browser-based pdf tools →

Could you build this?

Yes This is a client-side document utility that can be built easily in the browser using standard JavaScript PDF libraries like pdf-lib or PDF.js.

Competitors

Other products that read as similar to this one : 1410 launches clear the similarity bar, closest 8 shown.

Attention rank: #664 of 1411 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 330 days after the earliest competitor.

  • PDF Text Tools · ph · 2026-10-20 · 1 upvotes · similarity 0.63
  • Uttily PDF Tools · ph · 2026-10-21 · 2 upvotes · similarity 0.59
  • PDFCraftify · ph · 2026-10-08 · 2 upvotes · similarity 0.59
  • thepdf · ph · 2026-11-05 · 1 upvotes · similarity 0.58
  • PlumPDF · ph · 2026-10-18 · 1 upvotes · similarity 0.58
  • Dokkiman · ph · 2026-11-06 · 1 upvotes · similarity 0.58
  • Pro PDF Tools · ph · 2026-11-13 · 1 upvotes · similarity 0.58
  • PDF Tools Base · ph · 2026-09-21 · 1 upvotes · similarity 0.58

Related data

The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.