Sign PDF
Draw, type or upload your signature and place it on a PDF.
or drag and drop PDFs here
Files are processed on your device and never uploaded.
Working…
Your file is ready!
DownloadContinue with this file
To sign a PDF, open the file, click Signature and draw, type or upload your signature. Click on the page where it should go, drag to adjust, add initials or the date if needed, then click Save signed PDF. Your signature and file never leave your device.
How to sign PDF
- Select your PDF fileClick “Select file” or drop your PDF file on the page.
- Choose your optionsCreate your signature (draw, type or upload a photo), then click on the page to place it.
- Click “Save signed PDF”The result is created on your device in seconds and downloads automatically.
Frequently asked questions
Is an electronic signature legally valid?
In most countries, including Malaysia (Electronic Commerce Act 2006), the EU and the US, a simple electronic signature is valid for most everyday agreements. Some documents, such as wills or land titles, may need a digital certificate or a wet signature.
Is my signature stored anywhere?
Only in your own browser, if you keep “Remember on this device” ticked. It is never uploaded. Untick it to forget it.
Can I remove the white background from a photo of my signature?
Yes. Upload a photo of your signature on white paper and the background is removed automatically.
Is Sign PDF free?
Yes. Sign PDF on HappyPDF is completely free: no sign-up, no watermark and no daily limit.
Are my files safe?
Yes. Your files are processed inside your own browser and are never uploaded to HappyPDF’s server,, so nobody else can see them.
Does it work on phone, Mac and Windows?
Yes. It works in any modern browser (Chrome, Safari, Edge, Firefox, Samsung Internet) on Windows, macOS, Linux, Android and iPhone/iPad. Nothing to install.