How to Sign a PDF Without Printing It (5 Easy Methods)

Rental agreements, job offers, freelance contracts — PDFs that need signing land in your inbox constantly. You haven't needed to print anything for years. Here's how to handle it on any device.

Method 1: Sign a PDF on Mac Using Preview (Completely Free)

If you're on a Mac, you already have everything you need. Preview, the app that opens PDFs by default, has a built-in signature tool that most people don't even know exists.

1. Open your PDF in Preview.
2. Click the Markup toolbar button (the pencil icon) or press Shift+Cmd+A.
3. Click the Signature icon (looks like a cursive signature).
4. Choose Create Signature. You can sign with your trackpad, use your webcam to capture a physical signature on paper, or type your name.
5. Drag the signature onto your document, resize it, and save.

The trackpad method works surprisingly well if you sign slowly. The camera method, holding a signed piece of white paper up to your webcam, honestly gives the most natural-looking result. Either way, it takes under a minute.

Method 2: Sign a PDF on iPhone or iPad

Your iPhone has had PDF signing built in since iOS 11. No app download needed.

1. Open the PDF in the Files app or in Mail (tap to preview an attachment).
2. Tap the pen icon (Markup) in the top right.
3. Tap the + button at the bottom right → choose Signature.
4. Draw your signature with your finger (or Apple Pencil if you have one).
5. Tap Done, drag the signature into place, and save or share.

Pro tip: once you create a signature in Markup, it's saved and available in every document from then on. You'll never have to draw it twice.

Method 3: Sign a PDF on Android

Android doesn't have a universal built-in tool like iOS, but Adobe Acrobat Reader for Android is free and handles this perfectly.

1. Open Adobe Acrobat Reader (free on the Play Store) and open your PDF.
2. Tap the pencil icon → Fill & Sign.
3. Tap the signature icon → Create Signature.
4. Draw your signature, tap Done.
5. Tap where you want the signature to appear, resize it, and save.

Method 4: Sign a PDF in Windows (Using Adobe Acrobat Reader)

Adobe Acrobat Reader DC is free on Windows and handles PDF signing cleanly.

1. Open your PDF in Adobe Acrobat Reader DC.
2. Click Fill & Sign in the right panel (or go to Tools → Fill & Sign).
3. Click the Sign yourself button (pen icon in the toolbar).
4. Choose Add Signature → draw, type, or upload an image of your signature.
5. Click where you want to place it, then save.

If you want to upload a clean transparent signature image, create one at SignatureHub first, then use the "upload image" option in Acrobat.

Method 5: Sign a PDF Online Using a Browser

If you're on a device you don't control (a work computer, library machine), browser-based tools are your best bet. A few worth knowing:

• Smallpdf.com, Upload your PDF, use their eSign tool, download. Free for a couple of documents per day.
• iLovePDF.com, Similar, clean interface, also has mobile apps.
• DocuSign, The most legally recognized option if you need an audit trail for a binding contract.

The Easiest Way: Create a Reusable Signature PNG

The most efficient long-term approach is to create a transparent PNG of your signature once, save it on your device, and reuse it everywhere. Create yours for free on SignatureHub's handwritten signature tool, draw it, refine it, then download the transparent PNG. You can then insert it into any PDF viewer, Word document, or Google Doc as an image.