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.
How to sign a PDF online
- Click Choose files (or drag & drop) and select one or more PDF files. You can also paste them from your file manager.
- Draw your signature in the box (mouse or finger) or switch to typing it, then choose the page, position and size.
- Press Sign PDF. Processing runs with a live progress indicator.
- 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
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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