Sign PDF

Draw, type or upload your signature and place it on any PDF in your browser. Free signer with resizing and multi-page signing. No uploads, private.

Sign PDF is a free online tool that lets you add your signature to any PDF document directly in the browser. You can draw your signature with a mouse or finger, type your name in a handwriting style font, or upload a PNG or JPG image, then click on the page preview to place it, resize it, and download the signed file. Everything runs locally on your device, so your documents stay private.

Sign any PDF in your browser in under a minute

Draw, type, or upload your signature, place it exactly where it belongs, and download the signed PDF. Free, unlimited, and fully private.

100% private

No signup needed

Free unlimited

How to use

1
Upload PDF
Open the tool and choose the PDF file you want to sign from your computer, phone, or tablet. The document loads directly in your browser and a preview of the first page appears within seconds. Nothing is sent to any server, so even confidential contracts stay on your device while you work.
2
Create signature
Create your signature in the way you prefer. Draw it with your mouse, trackpad, or finger on the signature pad, type your full name to render it in a handwriting style font, or upload a PNG or JPG image of your handwritten signature, where a transparent PNG gives the cleanest result on the page.
3
Place and resize
Use the previous and next buttons to find the page that needs your signature, then click directly on the preview where the signature should appear. Drag the signature to fine tune its position, adjust the size slider between five and eighty percent of the page width, and optionally repeat the signature on every page of the document.
4
Apply and download
When the placement looks right, press the Apply Signature button to embed your signature permanently as an image in the PDF. The tool generates a new file named signed plus your original file name, shows a result preview for a final check, and lets you download it instantly to your device for printing, emailing, or archiving.

Three easy ways to sign

Draw your signature

Use your mouse, trackpad, or finger to draw your signature naturally on the digital pad, just like signing paper with a pen. You can clear the pad and redraw as many times as you like until the strokes look right, so even shaky first attempts quickly turn into a signature you are happy to place on the document.

Type your name

Prefer not to draw? Simply type your full name and the tool renders it instantly in a handwriting style font that resembles pen on paper. This is the fastest option when you need a clean and consistent signature across many documents, and it works perfectly with a keyboard on desktop computers and mobile devices alike.

Upload a signature image

Already have a scanned signature or a photo of your handwritten signature? Upload any PNG or JPG image and preview it directly on the page before applying. A transparent PNG blends into the document without an ugly white box around it, which keeps contracts and letters looking professional after signing.

Precise placement and sizing

Click anywhere on the page preview to drop your signature exactly where it belongs, such as above a printed name or inside a signature box. Drag it to adjust the position pixel by pixel, resize it smoothly from five to eighty percent of the page width, and switch between the current page and all pages with one toggle.

One click signing

Once everything is positioned, a single click on Apply Signature embeds your signature into the PDF and prepares a finished file within seconds. There is no account to create, no software to install, and no waiting in a processing queue, so signing an urgent contract on a deadline takes less than a minute from upload to download.

Private by design

Your PDF and your signature never leave your device because every step runs locally in the browser with client side technology. There are no uploads, no cloud copies, and no accounts storing your handwritten signature, which makes this tool suitable for sensitive documents such as employment contracts, medical forms, and financial agreements.

What can you sign with it?

Employment contracts and offer letters

New hires can sign offer letters and employment contracts from home without printing or scanning, which shortens hiring cycles from days to minutes.

Invoices and receipts

Freelancers and small businesses can acknowledge invoices and confirm receipts with a quick signature, keeping bookkeeping fully digital and searchable.

School permission slips

Parents can sign field trip forms and school authorizations on a phone in seconds, then send them straight back to the teacher by email or message.

Rental and lease forms

Tenants and landlords can sign rental applications, lease renewals, and maintenance approvals remotely, avoiding unnecessary in person meetings.

NDAs and business approvals

Teams can countersign non disclosure agreements and internal approval sheets in turn, keeping every version of the document neat and traceable.

FAQ

Is my document private and safe when I sign a PDF online?

Yes. This tool processes your PDF entirely inside your browser using client side code, so your document is never uploaded to a server, stored in the cloud, or seen by anyone else. The file is read from your device memory, your signature is drawn onto the page locally, and the signed PDF is generated on your own computer. Closing the browser tab clears the data from memory. Because nothing travels over the network, you can safely sign confidential paperwork such as employment contracts, tax forms, medical consent papers, and financial agreements without worrying about leaks or third party access.

Is an electronically signed PDF legally binding?

In many everyday situations, yes, but it depends on your country and the type of document. This tool creates a simple electronic signature, which means your signature appears as an image placed on the page, not as a certified digital signature with cryptographic proof of identity. Simple electronic signatures are broadly accepted for routine agreements under laws such as the ESIGN Act in the United States and the eIDAS regulation for simple electronic signatures in the European Union. However, regulated transactions such as real estate transfers, notarized documents, and some court filings may legally require advanced or qualified signatures from certified providers. Always check the rules that apply before relying on a simple signature.

Which image formats can I upload for my signature?

You can upload PNG or JPG images of your signature. PNG is the best choice when the background is transparent, because the signature blends cleanly into the document without a white rectangle around it. JPG works well for scanned signatures on white paper, especially when the signature sits on a plain area of the page. For the sharpest result, use an image at least 600 pixels wide with dark ink on a clean background. If your scan includes shadows or paper texture, crop tightly around the strokes before uploading so only the signature itself lands on the page.

Can I reuse my signature and collect signatures from several people?

You can reuse one signature across many documents by saving the image file on your device and uploading it each time you sign. The browser does not store your signature between visits, so keeping your own PNG file is the simplest reusable signature library. For multiple signers, each person signs in turn. The first person applies their signature and downloads the file, then sends it to the next person, who opens it in the tool and adds their own signature on their own device. This relay works well for two or three signers on contracts, approvals, and permission forms.

Does the signature tool work on mobile phones and tablets?

Yes, the tool is fully touch friendly and works in the mobile browser on both phones and tablets. You can draw your signature with a finger or stylus directly on the signature pad, tap the page preview to place it, drag it with your finger to adjust the position, and use the size slider to scale it. The page pager buttons are large enough for touch, so finding the right page in a long contract is easy. For the most precise drawing, use a stylus on a tablet, but a finger works well for everyday signatures on permission slips and approvals.

Will my signature look sharp when the signed PDF is printed?

Yes, as long as you start with a good quality source. The signature is embedded into the PDF as a PNG image, so its printed sharpness depends on the resolution of what you draw, type, or upload. Typed signatures render crisply at any size because the handwriting font is drawn fresh for your document. For uploaded images, use a scan at least 600 pixels wide with dark ink for clean edges on paper. Avoid shrinking the signature below ten percent of the page width, since tiny signatures lose detail. At normal signing sizes, the result looks clean on both office printers and professional prints.

What should I do if I place the signature in the wrong position?

Nothing is permanent until you press Apply Signature, so mistakes cost nothing. Simply click the preview again to move the signature to the correct spot, drag it until it sits exactly where you want it, or adjust the size slider if it overlaps nearby text. You can also switch pages and reposition freely before applying. If you already applied and downloaded, just reopen the original unsigned file and repeat the quick process. Keeping the original file until you are satisfied with the signed copy is the easiest safety net.

Is there a limit on PDF file size or page count?

There is no artificial limit on file size or page count. Because everything runs in your browser memory, the practical limit depends on your device. Most modern phones and computers handle contracts and forms up to several hundred pages without trouble. If a very large file feels slow, try closing other browser tabs to free memory, or sign the pages you need first and download before continuing. The all pages option places your signature throughout the document in one pass, which saves considerable time on long agreements that require signing every page.

Your privacy comes first

Signing a document should never mean handing it to a stranger. This tool runs completely in your browser.

Your PDF is never uploaded to any server or cloud storage during any step of the process.
Your signature is created and kept only in your browser memory while the tab stays open.
The signed file is generated locally on your device using client side code, then offered as a direct download.
There are no accounts, no tracking of document contents, and no copies retained after you leave the page.
You can disconnect from the internet after the page loads and continue signing fully offline.

Close the tab at any time and every trace of your document and signature disappears from memory, which makes this tool safe for contracts, medical forms, and financial paperwork.

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