Signature for PDF
A signature built to sign PDFs
Create a transparent signature PNG that drops straight onto a PDF signature line — no scanner, no printing. Type your name, pick a style and ink, download, and place it in any PDF viewer. Nothing you type leaves your browser.
Your signature preview will appear here
Rather draw it by hand? Use the handwritten signature generator.
How to sign a PDF with your signature
Works with any PDF viewer that lets you add an image — most do.
Create and download
Style your signature above and download the transparent PNG.
Insert it into the PDF
In your PDF viewer, choose Insert Image or Add Signature and select the PNG.
Place and resize
Drag it onto the signature line, scale to fit, then save or export the signed PDF.
Where the PNG works
Because it's a transparent image, your signature drops cleanly onto the page in tools like:
Adobe Acrobat
Use Fill & Sign → Add Signature → Image, then place it on the line.
Preview (Mac)
Use the Markup toolbar to insert the PNG and drag it into position.
Microsoft Word
Insert → Pictures, then export or save the document as a PDF.
Google Docs / Drive
Insert the image, position it, then download the file as a PDF.
PDF signature questions
Will the white box show around my signature?
No. The download is a transparent PNG cropped to the ink, so only your signature shows — no rectangle over the document.
What size should I use for a contract?
A size of 72–90px reads well on a standard signature line. The export is high-resolution, so it stays sharp when you scale it down in the PDF.
Is signing a PDF this way legally valid?
Often yes, depending on the document and country. Read our guide on whether an online signature is legally binding before signing anything high-stakes.