Add Signature to PDF Free — Draw, Type or Upload Online
You have a PDF that needs a signature. Maybe it's a lease agreement, a freelance contract, an NDA, or a school form — and you're two minutes away from a deadline. The last thing you need is Adobe asking for a subscription or DocuSign nudging you toward a free trial. Transfonic lets you add your signature to any PDF directly in your browser, free, with zero account required and nothing to download.
How to Add Your Signature to a PDF
Three steps and you're signed:
Upload your PDF to the tool
Create your signature — draw it with your mouse or finger, type your name, or upload an image of your handwritten signature
Place it on the page, resize if needed, then download your signed PDF instantly
The whole process takes under a minute. No login, no email confirmation, no waiting.
Three Ways to Sign — You Choose
Not everyone wants the same signature experience, so Transfonic gives you three options:
Draw — use your mouse on a desktop or your finger on a mobile to hand-draw your signature naturally
Type — type your name and pick a signature-style font that looks handwritten
Upload — already have a scanned image of your signature? Drop it in and place it directly on the document
All three methods produce a clean, professional-looking result on your PDF — no pixelation, no awkward cropping.
Test result: A 14-page contract PDF (1.8MB) with a drawn signature placed on page 14 processed and downloaded in under 8 seconds. Final file size was 1.9MB — output was crisp and the signature rendered cleanly at 100% zoom.
Honest note: Transfonic adds an electronic signature — a visible mark placed on your PDF. This is different from a cryptographic digital signature that embeds a certificate into the file. For most everyday uses (contracts, forms, agreements), an electronic signature is fully sufficient. If your document requires a certificate-based digital signature for legal compliance in your jurisdiction, consult a dedicated e-signature platform.
Who Needs to Sign a PDF Right Now?
This tool gets used every single day by people in situations like these:
Freelancers and contractors signing client agreements, NDAs, and project proposals
Renters and landlords handling lease documents without printing a single page
Students signing enrollment forms, permission slips, or internship agreements
Small business owners approving vendor contracts or HR onboarding documents
Remote workers handling the constant stream of forms that come with distributed teams
Once you've signed your document, you might also need to annotate or mark up sections for the other party — the PDF Highlighter lets you do that just as quickly. Or if your contract needs a logo or stamp image added before signing, start with the PDF Insert Image tool first.
Free, Private, and Secure
Your documents are processed in a secure browser session. Transfonic never stores, reads, or shares the files you upload — everything is automatically deleted after your session ends. No one at Transfonic has access to your signed documents.
Browse the full PDF Reviewer toolkit for more — highlight, annotate, insert images, and more, all free and all without creating an account.