How to Sign a PDF — 3 Free Methods (Draw, Type, Upload)
How to sign a PDF free — 3 methods. Draw your signature, type it, or upload an image. Legally binding e-signatures without printing or Adobe Acrobat.
About How To Sign A PDF
Sign a PDF electronically in three steps: upload, add your signature, and download. PDF AI Tools provides a free in-browser PDF signing tool with draw, type, and upload signature methods — no printing, no scanning, no subscription.
Unlike DocuSign or Adobe Sign which require account creation and charge monthly fees for unlimited signing, PDF AI Tools lets you sign unlimited PDF documents free, directly in the browser with no account.
How to Use How to Sign a PDF — 3 Free Methods (Draw, Type, Upload)
- Step 1: Upload your PDF
- Step 2: Click Sign PDF and choose your method (draw/type/upload)
- Step 3: Place the signature in the correct location
- Step 4: Download the signed document
Key Features
- Draw your signature with mouse or touchscreen
- Type your name in a handwriting-style font
- Upload a photo of your handwritten signature
- Place signature anywhere on any page
- Resize and reposition before finalizing
- Add date stamp alongside signature
- In-browser — signature never transmitted
- Download signed PDF immediately
How We Compare
Compared to desktop alternatives like Adobe Acrobat Pro (starting at $19.99/month), Smallpdf ($12/month for unlimited), or iLovePDF ($9/month Premium), PDF AI Tools delivers comparable quality at $0 for the core feature set. We skip the subscription friction by processing most operations directly in your browser with WebAssembly — no server infrastructure costs to pass on to users. Our AI features (summarization, chat, OCR) use a pay-as-you-go backend that keeps your total cost well under $5/month even for power users.
Frequently Asked Questions
Is a typed or drawn e-signature legally valid?
In most jurisdictions (US ESIGN Act, EU eIDAS, UK Electronic Communications Act) standard e-signatures are legally binding for most documents.
What is the difference between this and DocuSign?
DocuSign provides certified audit trails and identity verification. PDF AI Tools provides simple e-signature without audit trail — suitable for most everyday documents but not for high-security contracts.
Can I sign on a mobile phone?
Yes — draw your signature with your finger on a touchscreen using the mobile browser.
Does the signed PDF expire?
No — the embedded signature image does not expire.
Who Uses This Tool
- Sign a PDF rental agreement from your phone
- Return a signed HR document to your employer
- Sign an NDA before a client call
- Complete a permission form without printing