Sign PDF
Add a visual signature to a PDF in your browser. Draw, type, or upload a signature image — no upload, no signup, 100% private.
This tool adds a visual signature to your PDF in your browser. It does not provide identity verification, audit trails, digital certificates, legal e-signature certification, or compliance with ESIGN, UETA, or eIDAS.
Whether a signed PDF is legally valid depends on the document, jurisdiction, parties, intent, consent, and recordkeeping. ConvertForge does not provide legal advice.
Drop files here, browse
Drop your PDF here or click to browse
Max file size: 100 MB · Multiple files supported
Draw
Sketch your signature with a mouse or finger on the canvas pad.
Type
Type your name or initials and embed them in a clean font.
Upload
Use a PNG, JPG, or WebP image of a pre-made signature.
How to sign a PDF online
Upload or drop your PDF into the tool above.
Choose Draw, Type, or Upload Image to create your visual signature.
Select the page you want to sign using the Page selector.
Adjust the X position, Y position, and size sliders to place the signature where you need it.
Click Add Signature to PDF, then download your signed PDF — no upload, no account required.
Why add a visual signature to a PDF?
Adding a visual signature to a PDF is useful for forms, approvals, school permission slips, internal documents, and any paperwork where a visible signature is expected but a full certified e-signature process is unnecessary or unavailable.
You can sign a PDF without printing it, without scanning it back in, and without emailing the file to a third-party server. Draw your signature on screen, type your name, or upload a signature image — then download the result in seconds.
This tool adds a visual signature to your PDF. It is not a certified e-signature service and does not provide identity verification, audit trails, or compliance with ESIGN, UETA, or eIDAS. For documents where legal enforceability is critical, consult a lawyer or use a dedicated e-signature platform.
Privacy — processed in your browser
Your PDF never leaves your device. The signature is added entirely in your browser using pdf-lib, an open-source JavaScript library for client-side PDF processing. No file is uploaded, stored, or transmitted to ConvertForge servers at any point.
This makes ConvertForge a private PDF signer for anyone who needs to add a signature to a PDF without uploading it — including sensitive contracts, medical forms, or confidential documents.
Frequently Asked Questions
Is this legally binding?
This tool adds a visual image of a signature to a PDF — it does not create a legally certified e-signature. Whether a signed document is legally enforceable depends on the document, jurisdiction, parties, intent, consent, and any applicable laws. ConvertForge does not provide legal advice. If legal validity matters for your use case, consult a lawyer or use a dedicated e-signature service.
Does my PDF get uploaded to a server?
No. Everything happens entirely in your browser using the pdf-lib JavaScript library. Your PDF and signature image never leave your device. Sign PDF online without any upload — everything stays local.
What signature modes are available?
Three modes are available. Draw lets you sketch your signature with a mouse or finger on a canvas pad. Type renders your name or initials in a clean font that is embedded directly in the PDF. Upload lets you use a PNG, JPG, or WebP image of a pre-made signature — transparent PNGs give the cleanest result.
Can I sign a specific page of a multi-page PDF?
Yes. After loading your PDF, use the Page selector to choose which page should receive the visual signature. You can run the tool multiple times to add signatures to different pages.
What is the difference between a visual signature and a certified digital signature?
A visual signature is an image or text placed on a PDF page — it looks like a signature but carries no cryptographic proof of identity, no audit trail, and no tamper-detection. A certified digital signature uses a private key and a certificate authority to mathematically bind the signer's identity to the document. This tool adds a visual signature only.
Can I sign a PDF without printing it?
Yes. This tool lets you sign a PDF without printing, scanning, or sending the file anywhere. Draw, type, or upload a signature image in your browser and download the signed PDF directly — no printer or scanner needed.
Does ConvertForge store a copy of my signed PDF?
No. ConvertForge never stores, transmits, or processes your files on a server. The signed PDF exists only in your browser memory and is downloaded directly to your device.