Sign PDF

Draw or type your signature and stamp it onto any page — corner, center, size and page of your choice. Free in your browser — no sign-up, no watermarks.

Drop your PDF files here

or click to browse — Select multiple files for batch conversion

pdf

⚡ Instant — conversion starts the moment you add files. No sign-up, no watermarks. Why FileHugger

🔍 How your file is processed
Runs
In your browser on this page
Engine
pdf-lib stamps your drawn or typed signature image onto the page
Max input
512 MB per file
Your file
Processed in this browser tab — the file is not uploaded. Converted results are kept in this browser's local storage for up to two hours so their matching download page can show them; expired results are removed on the next site visit. Nothing is stored on our servers.
Good to know
This is a visual signature, not a cryptographic (qualified) e-signature.

Full security & file-privacy details →

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How to sign a PDF online

  1. Click Choose files (or drag & drop) and select one or more PDF files. You can also paste them from your file manager.
  2. Draw your signature in the box (mouse or finger) or switch to typing it, then choose the page, position and size.
  3. Press Sign PDF. Processing runs with a live progress indicator.
  4. Open the download page to save your files individually or grab everything as a single ZIP.

Why sign a PDF here?

Contracts, permission slips and forms constantly need a quick signature, and printing-signing-rescanning is a waste of paper and time. Draw your signature with the mouse or finger (or type it in a script style), pick the page and position, and download the signed document ready to send back.

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What this tool preserves — and what it changes

✓ Preserved

  • The rest of the document — the signature is stamped onto the chosen page(s) and no other content is touched
  • The transparent background of a drawn signature: it is embedded as a PNG, so no white box appears around your strokes

↺ Changed

  • The chosen page (first, last or every page) gets the signature at one of six positions, 36 pt in from the edges, sized to 18/25/35% of the page width with the aspect ratio kept
  • Typed signatures are rendered in dark blue using a cursive font from your own device (Segoe Script, Brush Script or Snell Roundhand — whichever is installed, with your browser's generic cursive as the last resort)

Known limits & edge cases

  • This is a visual signature, like signing a printout and scanning it — not a cryptographic or certified e-signature
  • An empty drawing pad or an empty name stops the run before any file is processed; with several PDFs queued, the same signature is stamped on all of them

Engine: pdf-lib stamps your drawn or typed signature image onto the page. These statements describe the engine as shipped on 2026-10-02 — behaviour changes are recorded in the changelog.

About the formats

What is a PDF file?

PDF is the universal document format: it locks layout, fonts and images so a file looks identical on every device and printer. Scans, invoices, forms, e-books and reports all travel as PDF. Because a PDF is a container rather than an image, turning its pages into JPG or PNG pictures — or bundling pictures into a PDF — are among the most common file tasks there are.

A signature on the page, in about a minute

Print, sign, scan, attach — the ritual dies here. Draw your signature with a mouse or finger (or switch to typing it), then place it on the page you choose, sized and positioned to sit on the line. The result is a PDF with your signature visibly on the document, ready to send back — which is exactly what permission slips, delivery confirmations, internal approvals and most everyday paperwork actually require.

Honest scope: this is a visual signature, the digital equivalent of ink on paper — not a cryptographic e-signature with identity certificates and audit trails, which some contracts and jurisdictions specifically require. For the daily stack of “please sign and return,” it’s the fastest honest path; for regulated signings, use the certified platform the counterparty designates.

Frequently asked questions

Is this Sign PDF tool free?

Yes — completely free, with no sign-up, no watermarks and no daily quota. Processing happens in this browser, so the practical limit is the memory available on your device.

Can I process multiple PDF files at once?

Yes. Add as many files as you like — each one is processed in sequence with its own progress status, and you can download the results individually or all together as a ZIP archive.

Does editing re-compress my PDF or reduce its quality?

No. Pages are copied at the object level — text, fonts, images and vector content are carried over as-is, without re-rendering. The output keeps the same sharpness and searchable text as the original.

Is this a legally certified digital signature?

No — it places a visual signature image on the page, exactly like signing a printout and scanning it. That is accepted for everyday paperwork in many situations, but it is not a cryptographic (qualified/certified) e-signature with identity verification. For those, a dedicated e-signing service is required.

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