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Go paperless with online signatures.

Leave your pen behind and let your trackpad or cursor do the work instead. Electronic signatures let you sign PDFs and documents on your device, without a piece of paper in sight. Whether you’re signing a lease agreement or filling out a W-2, you can complete all your forms and send them right from your computer or mobile device.

A graphic of signing a document on a Mac laptop

How to sign a PDF on Mac online.

Online signatures are great for remote teams and for contracts where the parties are in different locations. They can also be a big time and money saver. No hassle with the printer or post office means less time wrangling papers and more time being productive.

You can quickly and easily sign PDFs on Mac devices with online tools, such as Acrobat Fill & Sign:


1 Navigate to the Fill & Sign page in your web browser.


2 Click the Select a file button, or drag and drop your PDF into the drop zone.


3 Sign in to fill and sign your PDF for free and use the tools in the Sign panel to add your signature.


4 Click Next and download your completed form or get a link to share your PDF online.


A parent sitting on a couch next to their child and signing a document on their Mac laptop

How to sign a PDF on Mac with Acrobat Pro.

If you have Adobe Acrobat already installed on your Mac device, then you can easily fill and sign your PDF using the software. The advantage of doing so with Acrobat Pro is that you get access to more tools and features to customize your documents.

Here are 4 simple steps to sign a PDF on Mac with Acrobat software:


1 Open a PDF document in Acrobat.


2 Click Fill & Sign in the toolbar on the right, or Sign in the toolbar at the top of the page.


3 Draw, type, or choose an image file to fill the signature box. Then click Apply to place your new signature on the form.


4 Click Next to download the PDF file or send it to others for review or to collect their signatures.


How to sign a PDF on Mac with Preview.

You can also fill out PDF forms and sign them using Preview, which is a default app on Mac devices. The downside of using Preview is that you won't get access to other document management or editing tools. Here are the steps to sign a PDF using Preview:


1 Open the Preview app on your Mac and load the PDF form you wish to complete.


2 Select a field in the form and enter your text.


3 If the Markup toolbar doesn't appear, click the Show Markup Toolbar button, then click the Sign button.


4 Create your signature using the trackpad or your computer’s built-in camera, or use an existing signature.


5 Click on the signature you want to use and drag it to where you want it.


A graphic of three mobile phone devices side by side showcasing different features of editing a document

Frequently asked questions.

Can I customize my signature?

Yes. To create signatures, you can draw or use a digital pen, or simply select a hand-drawn style from the drop-down options and type your name. Once you make a signature, you can quickly select and apply it to every area of your document that needs to be signed or initialed. Your signature will be saved for future use, so you can give new documents a quick look and send them out in no time at all.

Can I edit a PDF before signing?

Yes, with Acrobat you can edit, comment on, and share your PDFs. Before you sign your name on the dotted line, you may also want to edit your document and collaborate with others. With Acrobat, you can mark up, annotate, or make comments to streamline the drafting process.

Why use e-signatures?

Electronic signatures have many benefits, from speed and convenience to cost savings and document tracking. Whether you're trying to sign a PDF document on a Mac or you receive a document to sign in an email, using an online signature tool can prove very helpful and efficient.

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