PDF Tools
Sign PDF
Sign PDF is part of Toolspire and is ready as soon as this page loads. Add your signature to a PDF in a minute — draw it with a finger or mouse, type it in a handwriting style, or use a photo of your signature on paper. Runs in this tab; nothing is uploaded.
On this page
What you can do here
Draw, type or upload
Sign with a finger on your phone, a mouse or a pen — or type your name in a signature style, or scan the one you use on paper.
Clean scans
Photograph your signature on white paper and the tool removes the background, so it sits naturally on the page.
Initials and dates
Add initials to every page of an agreement and today’s date beside your signature, without printing anything.
Exact placement
Drag each mark onto the signature line and resize it; what you see in the preview is what’s saved.
Works on phones
Open the PDF from WhatsApp or email, sign with your finger and share it back — no app or account needed.
Private
Your signature never leaves your device. No upload, no account and no watermark.
The sequence
How to sign a PDF online
- 1
Open the PDF
Drop the PDF onto the box. Enter its password if it has one.
- 2
Create your signature
Choose Draw, Type or Upload, then click Use this. Switch to Initials to add those too.
- 3
Place it
Go to the right page, drag the signature onto the line and resize it. Add the date or text if needed.
- 4
Download
Click Sign and download to save the signed PDF.
Worth knowing
- Sign PDF on Toolspire: create a signature three ways: Draw it, Type your name in one of four handwriting styles, or Upload a photo of your signature on paper.
- Uploaded photos can have the paper removed, leaving clean black or blue ink on a transparent background.
- Add initials, today’s date and short text such as your name or “Approved”, and put a signature on every page with one switch.
- Drag to place and resize each signature; it is added to the PDF exactly where you see it, the right way up on rotated pages.
- This adds an image-based electronic signature. It is not a certificate-based digital signature (DSC) or Aadhaar eSign.
- Signatures can be remembered on this device if you choose; otherwise they are forgotten when you close the page.
- Runs entirely in this tab with pdf-lib and PDF.js — your document and signature are not sent to us.
Is a signature added this way legally valid?
This tool adds a picture of your signature to the page — an electronic signature in the everyday sense, like signing a printout and scanning it. Many businesses, landlords, schools and HR teams accept it for routine documents such as offer letters, rental agreements, forms and invoices.
It is not a certificate-based digital signature. In India, documents that legally require an electronic signature under the IT Act — for example many government filings, tenders and company returns — need a Digital Signature Certificate (DSC) or Aadhaar eSign, which this tool does not provide. If you are unsure, ask the person or office who will receive the document.
Tips for a good signature
For an uploaded signature, sign with a dark pen on plain white paper, photograph it in good light from directly above, and keep Remove the paper on.
Sign last: make any other changes first — for example add page numbers or rearrange pages — then sign. To stop anyone moving or editing filled form fields afterwards, flatten the PDF.
FAQ
Questions about Sign PDF
Where does Sign PDF run?
How do I sign a PDF at no cost?
Can I sign a PDF on my phone?
Is this a digital signature (DSC) or Aadhaar eSign?
Can I add my signature to every page?
Is my signature stored or uploaded?
Can someone remove my signature from the PDF?
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