PDF Signature
Sign a PDF without uploading it: draw your signature with mouse or finger, type it, or use a scanned image, click the exact spot on the page, and download. The rest of the document stays untouched. Not a cryptographic signature — a visual one.
A PNG with a transparent background works best.
No file handy?
Click to place · drag to move · slider resizes the selected signature.
This places a visual signature image into the PDF. It is not a cryptographic digital signature — the document is not certified and existing digital signatures become invalid when the file is modified.
Sign contracts without uploading them
Draw your signature with a mouse or finger, type it, or upload a scan — then click the exact spot on the page. The signature is embedded as an image with pdf-lib and the rest of the document stays untouched: text stays selectable, pages keep their size, and the file never leaves your browser — which matters, because the papers people sign are exactly the ones they shouldn't upload to a random server.
Sign a PDF the way you would on paper: draw your signature with a mouse, trackpad or finger, type your name in a handwriting style, or upload a scan of your real signature — then click the exact spot on the page where it belongs. You can place several signatures or initials across different pages, drag them around, and resize them before exporting.
The signature is embedded as an image into the existing document with pdf-lib: text stays selectable, page sizes are untouched, and nothing is re-compressed. Rotated pages are handled — the signature lands where you clicked, whatever the page orientation. The contract you are signing never leaves your browser, which is the whole point: agreements, offers and leases are not files to upload to an unknown server.
Honesty note: this is a visual signature, the digital equivalent of ink. It is not a cryptographic digital signature — it does not certify the document, and modifying a PDF invalidates any existing cryptographic signatures it carried.
FAQ
Is this a legally binding electronic signature?
In many jurisdictions a simple electronic signature — an image of your signature placed with intent to sign — can be valid for everyday agreements, but requirements vary by country and document type. For qualified/certified signatures (eIDAS QES, notarized documents), you need a certificate-based signing service, which this tool deliberately is not.
Is it a cryptographic digital signature?
No. It embeds a signature image — like printing, signing and scanning, minus the printer. It does not add a certificate, and it cannot certify the document against later edits. Any existing cryptographic signature in the PDF becomes invalid the moment the file is modified, by this or any other editor.
Which is better: drawing, typing, or uploading?
Drawing with a finger on a touchscreen looks most natural. Typing is fastest and uses a handwriting-style font. Uploading a scanned signature (PNG with transparent background) gives the most faithful result — the tool trims the empty margins automatically.
Can I sign on a specific page only?
Yes. Navigate to the page, click where the signature goes; each placement remembers its page. You can mix signatures and initials across pages in one pass.
Is my document uploaded?
No. The PDF, your signature and the signed result all stay in your browser.
Why does my signature have a white box around it?
JPEG uploads have no transparency, so the background stays. Upload a transparent PNG instead, or use the draw/type modes, which always produce transparent signatures.