Sign PDF
Upload a PDF, add your signature image, and drag it anywhere on the page.
How it works
Upload PDF
Select the PDF document you want to sign.
Place Signature
Upload your signature and drag it to the exact position.
Download
Get your signed PDF ready to share.
About This Tool
Adding a signature to a PDF is a daily requirement for professionals, freelancers, and individuals handling agreements, forms, bank documents, and official correspondence. Instead of printing a document, signing it by hand, and scanning it back — a process that takes 5–10 minutes and degrades image quality — you can upload your signature image, place it precisely on the page, and download the signed PDF in under a minute.
JustConvert's Sign PDF tool uses the PDF.js rendering engine to display your document in the browser at full quality. You upload a transparent PNG of your handwritten signature, drag it to the signature line, resize it to fit, and then download the finished document. No account, no installation, and no subscription is required.
- check_circleUpload a signature image and place it precisely
- check_circleDrag, reposition, and resize the signature freely
- check_circleWorks on multi-page PDFs with page navigation
- check_circleNo printing, scanning, or faxing required
- check_circleOutput is a standard PDF compatible with all viewers
- check_circleFiles deleted automatically after download
Frequently Asked Questions
Are electronic signatures on PDFs legally valid in India? expand_more
An image-based signature placed on a PDF is considered an electronic signature. Under the Information Technology Act, 2000 (Section 5 and 10A), electronic signatures are legally valid for most commercial agreements. For highly sensitive legal instruments (e.g., wills, property transactions), a DSC-based digital signature may be required. Consult a legal professional for specific use cases.
What image format should I use for my signature? expand_more
A transparent PNG is ideal — it lets the page content show through the background of the signature image. JPG files have a white or solid background that may cover printed text. If your signature is on paper, photograph it on a white background, then remove the background using any online background remover before uploading.
Can I add my signature to multiple pages? expand_more
Yes. Use the page navigation controls to move between pages and add your signature image to each page that requires it. Each page can have the signature placed independently.
Is this the same as a digital signature with a DSC? expand_more
No. This tool places an image of your handwritten signature on the PDF, which is an electronic signature. A DSC (Digital Signature Certificate) is a cryptographic certificate issued by a licensed CA that creates a tamper-evident digital signature. DSC-based signing requires separate software and a registered certificate.
Are my documents safe when I upload them for signing? expand_more
Yes. Your PDF and signature image are processed in an isolated session on secure servers and permanently deleted as soon as you download the signed output. We never read, store, or share the contents of your documents.