How to Sign a PDF Free Online (No Adobe Needed)
Signing PDF documents used to require printing, signing by hand, and scanning. Today you can sign any PDF digitally for free in seconds — no Adobe Acrobat, no printer, no scanner needed. Here are the best free methods to sign a PDF online.
Types of PDF signatures
Electronic signature (e-signature)
A digital representation of your signature — drawn, typed, or uploaded as an image. Legally valid for most everyday documents in most countries.
Digital certificate signature
A cryptographically verified signature linked to your identity certificate. Required for legal contracts in some industries. Needs Adobe Acrobat or specialized software.
Simple typed name
Typing your name with a signature-style font. Acceptable for many informal documents and internal approvals.
Method 1 — Sign PDF using your browser (Chrome, Edge, Safari)
Open the PDF in Chrome or Edge
Open your PDF in Chrome or Microsoft Edge by dragging it into the browser window.
Use the fill and sign feature
Chrome and Edge have a built-in fill and sign tool. Click the pen icon in the PDF toolbar.
Draw or type your signature
Draw your signature with your mouse or trackpad, or type your name. Position it on the signature line.
Save the signed PDF
Press Ctrl+P (or Cmd+P on Mac) and print to PDF to save the signed document.
Method 2 — Use DocuSign free plan
Go to DocuSign.com
DocuSign offers a free plan that allows you to sign up to 3 documents per month. Go to docusign.com and create a free account.
Upload your PDF
Upload the PDF you need to sign.
Add your signature
Draw or type your signature and place it on the document.
Download the signed PDF
Download the signed document. DocuSign provides a legally recognized e-signature.
Method 3 — Use Adobe Acrobat Reader (free)
Download Adobe Acrobat Reader
Adobe Acrobat Reader is free to download. It includes the Fill & Sign tool for adding signatures to PDFs.
Open your PDF in Reader
Open the PDF you need to sign in Adobe Acrobat Reader.
Click Fill & Sign
Go to Tools → Fill & Sign. Draw your signature or use a typed signature style.
Place and save
Position your signature on the document and save the signed PDF.
Method 4 — Sign on iPhone using Markup
Open the PDF in Files or Mail on iPhone
Find the PDF in the Files app or open it from an email attachment.
Tap the Markup icon
Tap the pen icon (Markup) to open Apple's built-in annotation tool.
Add a signature
Tap the + icon → Signature. Draw your signature with your finger on the screen.
Place and save
Drag the signature to the correct position and tap Done to save.
💡 Pro tip
For legally binding contracts in business, use a dedicated e-signature service like DocuSign or HelloSign which provide audit trails and legal certification. For everyday personal documents, browser-based signing is quick and perfectly acceptable.
Frequently asked questions
Is signing a PDF electronically legal?
Yes. Electronic signatures are legally valid for most everyday documents in the US (under ESIGN Act), EU (under eIDAS), and most countries worldwide. For certain legal instruments like wills, notarized documents, or court filings, physical signatures may still be required.
Can I sign a PDF for free without Adobe?
Yes. Chrome and Edge have built-in PDF signing. Apple devices have Markup. DocuSign offers a free plan. All work without Adobe.
Can I sign a PDF on my phone for free?
Yes. iPhone users can use the Markup tool in the Files app. Android users can use Adobe Acrobat Reader free app.
Does PDFcraft have a PDF signing tool?
PDFcraft currently focuses on PDF manipulation tools. For signing, we recommend using your browser's built-in tools, Apple Markup on iPhone, or the free DocuSign plan.
How do I add my actual handwritten signature to a PDF?
Sign your name on white paper, photograph it, remove the background using a free tool, save as PNG, then insert it as an image into your PDF.
Can I sign a PDF on Android for free?
Yes. Download Adobe Acrobat Reader free on Android. Open your PDF and use Fill & Sign to draw your signature.
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