How to Sign a PDF for Official Documents — Free

Updated for 2026

Most forms just need your signature image or typed name — you do not need expensive software.

Quick answer: Add your signature (typed, drawn, or an image) to the PDF in your browser, then save and send it.

Sign a PDF — free, in your browser

Real-world use — what we verified

We signed a ten-page lease by placing a typed signature on the last page; the file stayed local and the recipient accepted it as a normal signed PDF.

Honest note: This adds a visible signature, not a cryptographic digital-ID signature. For court-grade or certified e-signatures, use a qualified e-sign provider.

Step-by-step

  1. Open the sign tool and add your PDF (stays in your browser).
  2. Choose typed, drawn, or image signature.
  3. Place it on the correct page.
  4. Save and download the signed PDF.

If it is still too big

AdSense slot — paste your in-article display ad <ins> code here (mid-content)

FAQ

Is a browser signature legally valid?

A visible signature is fine for most routine forms; for certified/qualified e-signatures, use a licensed e-sign provider.

Does signing upload my document?

With an in-browser tool like this, the file is processed locally and never uploaded.

Can I add a signature image?

Yes — upload a picture of your signature and place it on the page.

About PDFzen

PDFzen is a small, independent set of free, in-browser PDF tools. Files are processed locally in your browser and are never uploaded to a server — no accounts, no watermarks, no upsells. Every guide is written from running the tools on real files.

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