Sign PDF Online - Add Electronic Signature

Draw, type, or upload your signature and drag it anywhere on any page. Free, no sign-up — and your PDF never leaves your browser.

Your file never leaves your device

Your file never leaves your device

Signing happens entirely in your browser. Your PDF and your signature are never uploaded to a server — everything is processed locally on your own device.

1

Upload your PDF file

Select the PDF file you want to sign

2

Add your signatures

Draw, type, or upload a signature, then drag it anywhere on any page — add as many as you need

3

Download signed PDF

Signatures are applied right in your browser and the file downloads instantly, no sign-up needed

How it works

Upload your PDF file

Select the PDF file you want to sign

Add your signatures

Draw, type, or upload a signature, then drag it anywhere on any page — add as many as you need

Download signed PDF

Signatures are applied right in your browser and the file downloads instantly, no sign-up needed

Frequently Asked Questions

View Full FAQ
How does PDF signing work?

Draw, type, or upload a signature, then drag it exactly where you want it on the page — you can place as many signatures as you need across different pages. The signatures are embedded directly into the PDF, and everything runs in your browser: the file is never uploaded.

How can I create my signature?

Three ways: draw it with your mouse or finger, type your name and pick a signature style, or upload an image of your handwritten signature. A PNG with a transparent background looks best, but any common image format works.

Is this a legally binding signature?

This tool adds a visual signature to your PDF. For legally binding electronic signatures, you may need specialized services that provide digital certificates and audit trails. This is a simple signature overlay tool.

Can I sign multiple pages?

Yes. Use the page navigation to move through the document and place signatures on any pages you like — you can add several signatures and apply them all in one go.

How do I sign a PDF online?

Upload your PDF (up to 50MB), then draw, type, or upload a signature and drag it exactly where you want it on the page — you can place several signatures across different pages. Click apply and download the signed copy. Everything runs in your browser and no account is required.

Is this a digital signature or a visual signature?

A visual signature. BlendPDF draws your name or signature image onto the page. It is not a cryptographic (PKI) digital signature: there is no certificate, no tamper-evident seal, and PDF viewers will not show a signature-validation panel.

What is the difference between text and image signatures?

You can create a signature three ways: draw it with your mouse or finger, type your name in a signature font, or upload an image of your handwritten signature. Typed signatures are fastest; drawn and image signatures look handwritten. A PNG with a transparent background looks best.

How do I make a good signature image?

Sign with a dark pen on white paper, photograph or scan it in good light, and crop tightly around the signature. A PNG with a transparent background looks best because the page shows through; a JPEG will carry a white rectangle behind the ink.

Where can I position the signature?

Anywhere. The signature appears on a live preview of the page and you drag it to the exact spot you want; a corner handle resizes it. Bottom-right is the classic signature spot, but placement is completely free, so you can land it precisely on a form's signature line.

Can I sign more than one page?

Yes, in a single pass. Navigate between pages in the preview, place a signature on every page that needs one, and apply them all at once. Each signature can be positioned and sized independently.

Can I sign in Arabic or other non-Latin scripts?

Yes. Type your name in Arabic, Hebrew, Chinese, or any other script and it renders correctly — your browser shapes the text with proper letter joining and right-to-left direction before it is placed on the page. For a handwritten look in any script, an image signature works too.

Is signing PDFs free? Is there a watermark?

Yes, completely free, with no watermark, no signature limit, and no trial-then-paywall. No account or email is required; downloads are direct, with an optional email-delivery feature if you want one.

Is it safe to sign documents online?

Yes. Signing happens entirely in your browser — your PDF and your signature are never uploaded to a server, so nothing needs to be deleted afterward because nothing ever leaves your device. We only collect aggregate anonymous usage analytics.

Can I sign a password-protected PDF?

No, encrypted PDFs cannot be processed. Remove the password first with the Unlock PDF tool (you need the password), sign the unlocked copy, and re-protect it afterward with the Protect PDF tool if needed.

Can I sign a scanned PDF?

Yes. The signature is drawn on top of the page, so it works on scanned documents exactly as on digital ones. This is the classic use case: someone emails you a scanned form, you sign it and send it back without printing.

What are the file limits?

One PDF up to 50MB per operation. Signature images can be any common format your browser can display — they are converted automatically. There is no page-count limit, and you can place signatures on any pages in the document.

How does this compare to printing and scanning, or Adobe Fill & Sign?

Versus print-sign-scan: same visual result, no printer, and the document keeps its quality and selectable text. Versus Adobe Fill & Sign: similar simple e-signature, but BlendPDF runs in the browser with no app or Adobe account. For certificate-based digital signatures, a dedicated service is the right tool.

What should I do if signing fails?

Check that the PDF is under 50MB and not password protected — encrypted files must be unlocked first with the Unlock PDF tool. Corrupted files can be run through the Repair PDF tool first, though repair cannot fix everything.

Why BlendPDF?

No sign-up required

Upload, process, download. No account and no credit card — ever.

Your file never leaves your device

Signing happens entirely in your browser. Your PDF and your signature are never uploaded to a server — everything is processed locally on your own device.

Sign PDF Online Free - Add Electronic & Digital Signatures | BlendPDF