Free Digital Signature — Create & Sign PDF Online Free
Create a free digital signature online and sign any PDF instantly — draw with mouse or touchscreen, or upload a signature image. Free digital signature tool with no signup, no watermark, no software needed. Position your e-signature with live preview and download your signed PDF in seconds. Works on Windows, Mac, Android, and iPhone — digital signature online free, no account required.
Drop your PDF here
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Digital Signature Tool
- → Draw or upload your signature instantly
- → Drag & position with live PDF preview
- → Files deleted after signing — 100% private
🔒 Your files are auto-deleted after 1 hour
Instant Conversion
Results in seconds
High Accuracy
Clean output quality
Secure Files
Auto-deleted after processing
Works Everywhere
Desktop, tablet, mobile
100% Free
No hidden fees
How It Works
How to Sign a PDF Online Free — 3 Simple Steps
Upload your PDF, create your free digital signature, drag it into position on the live preview, and download the signed PDF instantly — no account required.
Upload Your PDF File
Select the PDF document you need to sign from your device or drag and drop it into the uploader. Supports any PDF — contracts, agreements, forms, and letters. Works on desktop and mobile devices.
Create Your Free Digital Signature
Draw your signature using mouse or touchscreen, or upload a PNG/JPG image of your handwritten signature. Create a clean, natural digital signature in seconds — no stylus or special hardware needed.
Position & Download Signed PDF
Drag your signature to the exact position on the live PDF preview. Download your signed PDF instantly — no watermark, no signup, no software required.
Why Choose PDFLinx?
Why Use PDFLinx Free Digital Signature Tool?
Free PDF tools without the catch — no ads, no upsells, no account walls.
Clean Formatting
Your converted file looks exactly like the original — text, tables, and images preserved.
Private & Secure
Files are processed on secure servers and automatically deleted after 1 hour.
No Sign Up Required
Use instantly without registration. No email, no account, no friction whatsoever.
Free Forever
No hidden fees, no premium tiers. Convert as many PDFs as you need at zero cost.
Works Everywhere
Desktop, tablet, mobile — use PDFLinx directly in your browser on any device or OS.
Lightning Fast
Most conversions complete in under 30 seconds. No waiting, no queues.
Free Digital Signature — Sign PDF Online, Create Free E-Signature Instantly | PDFLinx
Free digital signature tool — sign PDF online, draw your e-signature or upload an image, position with live preview, and download instantly. No signup, no watermark. Works on Android, iPhone, Mac, and Windows.
Free Digital Signature Online — Sign PDF Free, No Signup
Looking for a free digital signature you can use right now? PDFLinx lets you create a digital signature free of charge and add it to any PDF in seconds — no signup, no watermark, and no software to install. Draw your signature with a mouse or touchscreen, or upload a PNG/JPG image of your handwritten signature. Place it exactly where you need it using the live PDF preview, then download your signed document instantly. It is a fast, free alternative to Adobe Acrobat Sign, DocuSign, and Smallpdf, with no account and no hidden cost.
How to Create a Digital Signature Free — Draw or Upload in Under a Minute
Want to create a digital signature free of charge? With PDFLinx it takes less than a minute. Upload your PDF, then choose how to sign: draw your signature on the built-in canvas using a mouse, trackpad, or finger, or upload a PNG or JPG image of your existing handwritten signature. Either way you get a clean, professional result that you can drag to any position on any page. No stylus, no special hardware, and no installation needed. This is one of the quickest ways to create a free digital signature online and apply it straight to your document. If your document is password protected, you can use our Unlock PDF tool first before signing.
Digital Signature Online Free — Works in Your Browser on Any Device
PDFLinx is a digital signature online free tool that runs entirely in your browser, so there is nothing to download or set up. Whether you are on Windows, Mac, Linux, Android, iPhone, iPad, or a tablet, you can sign a PDF online free without creating an account. Your document is processed securely and the signed file is ready for download as soon as you finish. Use it at the office, at home, or on the go whenever a document needs your signature quickly. You can also explore our complete suite of free PDF tools for all your document needs.
Free E-Signature Download — Sign PDF and Save the Signed File Instantly
Need an e signature download free of cost? After you create your free digital signature and position it on the PDF, PDFLinx generates the signed document and makes it available for immediate download. There is no waiting, no email delivery, and no account required. The signed PDF is saved straight to your device in seconds, so the whole process of uploading, signing, positioning, and downloading takes about two minutes. There are no browser extensions or apps to install, which makes it a simple free e-signature option for anyone. If you need to make additional text changes, check out our Edit PDF tool.
Free Digital Signature for Contracts, Agreements, and Official Forms
A free digital signature from PDFLinx works for all kinds of PDF documents: employment contracts and offer letters, rental agreements, business NDAs, client proposals, invoices, purchase orders, consent forms, insurance paperwork, and government applications. Upload the PDF, add your signature, and place it exactly where required. The signed output is a standard PDF that opens in Adobe Acrobat Reader, Google Chrome, Apple Preview, and any other PDF viewer, so the person receiving it does not need special software. Need to secure your signed agreement? Use our Protect PDF tool to add password security.
When Should You Use a Digital Signature on a PDF?
Digital signatures are useful whenever a document needs an authorized signature but printing, signing by hand, and scanning is inconvenient. Typical examples include signing employment contracts remotely, approving agreements without meeting in person, signing property or rental documents, authorizing forms and applications, and approving invoices for clients. A free e-signature created with PDFLinx is generally suitable for everyday business and personal agreements. For high-stakes or regulated documents, always check the legal requirements that apply in your country or jurisdiction. If you need to combine multiple signed files, try our Merge PDF tool.
Digital Signature vs Electronic Signature vs E-Signature — What Is the Difference?
The terms digital signature, electronic signature, and e-signature are often used interchangeably, and in everyday use they all mean adding a signature to a document electronically instead of printing it. Technically, a cryptographic digital signature uses encryption keys to verify identity and document integrity, while a visual e-signature is a drawn or uploaded signature image placed on the PDF. PDFLinx creates the visual kind, which is sufficient for most personal and business needs such as contracts, approvals, and forms. If your situation requires a certificate-based signature, confirm the requirements with the party requesting it. After signing, you can easily convert your document to editable text with our PDF to Word converter.
Privacy and File Security — 256-bit SSL Encryption
Your uploaded PDF files and signature data are transferred over 256-bit SSL encryption and processed on secure servers. Files are permanently deleted right after signing, and we do not store, share, or access your documents or signature at any point. PDFLinx is built with privacy-first principles and is GDPR-aware. No account or email is required to use the free digital signature tool, so your documents stay private from upload to download. If you need to reduce your signed file size for emailing, use our Compress PDF tool.
Help Center
Digital Signature — Frequently Asked Questions
Quick answers about your questions, file safety, and more.
Is the PDFLinx digital signature tool free?
Yes. PDFLinx is a completely free digital signature tool — no hidden costs, no subscriptions, and no limits on how many PDFs you can sign. Create a free digital signature and add it to unlimited PDFs.
How do I create a free digital signature online?
Upload your PDF to PDFLinx, then use the drawing canvas to draw your signature with your mouse, trackpad, or finger on touchscreen. Alternatively, upload a PNG or JPG image of your handwritten signature. Position it on the PDF using the live preview and download the signed document instantly — no account required.
Can I create a digital signature for free without software?
Yes. PDFLinx works entirely in your browser — no software, no app, and no browser extension required. Create a free digital signature online and sign any PDF instantly without installing anything.
How do I sign a PDF on iPhone for free?
Open PDFLinx in your iPhone browser (Safari or Chrome) — no app download needed. Tap the upload area, select your PDF from Files, draw or upload your signature using touch, position it on the live preview, and download the signed PDF to your iPhone instantly. The fastest free digital signature tool for iOS.
How do I sign a PDF on Android for free?
Open PDFLinx in your Android browser (Chrome or Firefox). Upload your PDF, draw your signature using your finger on the touchscreen or upload a signature image, position it, and download the signed PDF. No app installation required — works directly in any Android browser.
How do I sign a PDF on Mac for free?
Open PDFLinx in Safari, Chrome, or Firefox on your Mac. Upload your PDF, draw or upload your signature, position it on the live preview, and download the signed PDF. No software installation needed — completely free alternative to Adobe Acrobat Sign on Mac.
How do I sign a PDF on Windows 10 or Windows 11?
Open PDFLinx in any browser on Windows — Chrome, Edge, or Firefox. Upload your PDF, create your digital signature by drawing or uploading an image, position it, and download the signed PDF. No additional software needed. Works on Windows 10 and Windows 11.
Can I upload a signature image instead of drawing?
Yes. If you already have a scanned or photographed signature, upload any PNG or JPG image and it will be overlaid on your PDF exactly where you position it. Both drawing and image upload are supported.
Does PDFLinx add a watermark to signed PDFs?
No. PDFLinx never adds any watermark to your signed PDF. The output is 100% clean and professional — just your signature on the document, nothing else.
Is a digital signature the same as an e-signature?
Digital signature and e-signature (electronic signature) are often used interchangeably for online document signing. Both refer to adding a signature to a document electronically — without printing, signing by hand, and scanning. PDFLinx lets you create a free e-signature online in seconds.
Can I sign a multi-page PDF?
Yes. PDFLinx supports multi-page PDFs. You can select the specific page where your signature needs to appear and position it precisely using the live preview before downloading. If you need to rearrange or organize pages first, try our Organize PDF tool.
Are my uploaded PDF files secure?
Yes. All files are transferred over 256-bit SSL encryption and permanently deleted from our servers immediately after signing. We do not store, share, or view your documents at any point. PDFLinx is GDPR-aware and privacy-first.
Do I need to sign up to sign a PDF?
No. No account, no registration, and no email required. Sign PDF files instantly for free — completely anonymous.
Can I download my digital signature as an image?
The signed PDF is available for direct download immediately after signing. If you need the signature as a standalone image file, you can draw your signature, take a screenshot, and save it — or use the upload option with a pre-saved signature image for future use.
What is the difference between a digital signature and a handwritten signature?
A handwritten signature is a physical mark made with pen on paper. A digital signature (or e-signature) is an electronic version added to a document online — drawn with a mouse, finger, or stylus, or uploaded as an image. PDFLinx lets you create a free digital signature that looks identical to your handwritten signature and can be added to any PDF instantly. After signing, you can also protect it using our Protect PDF tool or reduce file size with Compress PDF.
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