Sign a PDF online — signature, date and stamp
Upload a signature image, drop a date, add a company stamp, then download the signed PDF. Free, no signup, no upload — your file stays in your browser.
Everything in this PDF signer
A free, fast, private PDF signing tool — sign contracts, invoices, letters and forms from your browser.
Upload your signature
Pick a PNG or JPEG of your signature, click on the PDF, and you're done. Transparent PNGs blend cleanly.
Add the date
Drop today's date next to your signature with one click. Edit the text or format inline.
Add a company stamp
Upload your firm's stamp as PNG/JPEG and place it on any page. Reuse it on as many pages as you need.
Drag and resize
Position items pixel-perfect. Corner handles resize images while keeping their aspect ratio.
100% private
Your PDF and your signature image stay in your browser. Nothing is uploaded to our servers.
Save, Share or Email
When you're done, save your edits and download, share via the system share menu, or open your email app.
How to sign a PDF in 4 steps
- 1
Open your PDF
Drop a PDF on the page or pick one from your computer.
- 2
Add signature
Upload a PNG or JPEG of your signature. Click on the page to drop it where you want.
- 3
Add date or stamp
Click Add date for today's date, or upload a company stamp image.
- 4
Save and download
Click Save Changes, then Download the signed PDF.
Sign PDF — frequently asked questions
▶How do I sign a PDF online for free?
Drop your PDF here, click Add signature, choose a PNG or JPEG of your signature from your computer, then click on the page to drop it. Drag to position and use the corner handle to resize. Click Save Changes and Download to keep the signed file.
▶What signature image format can I upload?
PNG or JPEG. PNG is recommended because it supports transparency, so your signature blends cleanly into the document. Most signature scanners and capture apps export PNGs.
▶Can I add the date next to my signature?
Yes. Click Add date and click on the page where you want it. Today's date appears as text — you can drag it to position, double-click to edit, and resize it from the corner.
▶Can I add a company stamp?
Yes. Click Add company stamp, upload a PNG or JPEG of your stamp, then click on the page to place it. You can drop the same stamp on multiple pages by clicking Place stamp again.
▶Are my files uploaded to your server?
No. Signing happens entirely inside your web browser. Your PDF and your signature image never leave your device.
▶Is the signed PDF legally valid?
An image-based signature placed on a PDF is what most jurisdictions call an 'electronic signature' (e-signature). It is widely accepted for routine business use. For high-stakes contracts or legal filings, you may need a digital signature with a cryptographic certificate (PKI), which is a separate workflow.
▶Can I sign multiple PDF pages?
Yes. After placing your signature once, click Place signature again to drop another copy on a different page. Same for the company stamp. The uploaded image stays cached for the rest of your session.
▶Will the signature print well?
Yes. We embed your signature as an image at full resolution. For best results, scan or capture your signature at 300 DPI or higher and use a transparent PNG.
▶Can I undo a placement?
Yes. Click Undo (or use the X on a placed item) to remove it. Up to 50 placement changes can be undone in one session.
Practical guide
Place a visible signature on a PDF
Add a signature image, date or company stamp to a page. This is a visual signing workflow for documents where the recipient accepts that format.
Step by step
- Open the PDF and locate the signature area.
- Choose a clear signature image, place it on the page, and adjust its size. Add the required date or stamp.
- Save changes, download the file and check the signature location before sending it to the recipient.
Before you start
A pasted signature image is not a certificate-backed digital signature or proof of identity. This tool does not provide a signer audit trail or guarantee legal acceptance. Follow the recipient’s signing requirements and use only signatures you are authorised to apply.
Example workflow
Place your own signature on a routine acknowledgement after confirming that a scanned signature is acceptable. Keep your signature image private.
If the result is not what you expected
A PNG with a transparent background usually avoids a white box around the signature. If a recipient requires identity verification or a digital certificate, use their specified signing service.
Keep your original file and check the downloaded result before sharing. Large files may exceed your browser’s memory. Need help? Contact us with the tool name and your browser version; please do not send private documents.
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