pdf.nutoolz

pdf.nutoolz.com

A serious, client-side PDF editor.

100% in your browser. No uploads. No accounts. No AI. Built for people who know what an xref table is.

Tools

Why nutoolz PDF?

Most online PDF tools upload your file to a server, process it there, and stream you back the result. nutoolz PDF does the opposite — every operation runs in your browser using pdf-lib and pdfjs-dist. Your files are never sent anywhere. You can open DevTools, watch the Network tab, and verify the absence of any PDF byte upload while you work. The site enforces this with a strict connect-src 'self' Content Security Policy — analytics is allowed but file bytes can't physically leave the page.

No signup, no watermarks, no limits

Every tool on this site is completely free with no usage caps, no paywalled features, no watermarks on output, and no account requirement. You don't even need to give us an email. Pick the tool, drop your file, get your result. We add new tools regularly based on what people actually search for — see the roadmap below for what's coming next.

How the engine works

All file processing happens inside a Web Worker so the main UI thread stays responsive even on large PDFs. pdf-lib handles page-level operations (merge, split, rotate, sign, compress), pdfjs-dist handles text extraction and page rendering, and mammoth handles DOCX parsing. Tool pages share a thin getEngine() client that calls the worker over a Comlink RPC bridge — clean architecture, fast workflows.

What's coming next

Forensic destructive redaction with a public verifier, true in-place text editing with a live Layout Fidelity Score, an object inspector for the xref and content streams, on-device OCR for scanned PDFs, and visual + text + object diff between two PDFs. The architecture for all of this is in place — the Content Stream Engine that powers the deeper editing tools has already been spiked and validated.

Looking for non-PDF tools?

nutoolz PDF is the dedicated PDF site. For everything else — resume maker, image compressor, QR code generator, JSON formatter, password generator, and a dozen more — visit nutoolz.com. All of those tools run in your browser too, same privacy story.