How to Sign A PDF on Mac?

Nowadays, a paperless office is widely carried out in various places, more and more people use the internet to send electronic documents to colleagues, bosses or partners. When you receive a PDF document that you need to sign, printing it out and signing with a pen is so troublesome, so directly signing the PDF on Mac appears to be particularly important. 

1. How to Sign a PDF on Mac with PDF Reader Pro?

2. How to Sign a PDF on Mac with Preview?

3. How to Sign a PDF on Mac with Online PDF Tool？

How to Sign a PDF on Mac with PDF Reader Pro?

PDF Reader Pro is a third-party application of PDF for mac OS. It is a complete PDF solution which supports Mac users to view, annotate, edit, convert, fill and sign, compress, remove password, add watermark and more. For PDF Reader Pro, signing PDF on Mac is a very easy job.

Step 1. Click the 'Free Download' button to download PDF Reader Pro, and install it on your Mac.

Step 2. Open your PDF file on PDF Reader Pro.

Step 3. Click the "Fill & Sign" in the tool bar and use its feature of "Sign document by typing or drawing a signature", then enter the signature interface.

Step 4. Sign your PDF file on Mac with PDF Reader Pro. There are three simple ways showing how you can sign your PDF file with PDF Reader Pro.

1. Sign PDF on Mac with Keyboard. Input your signature and click "Save & Apply". You can change fonts and colors.

2. Sign PDF on Mac with Trackpad. Click "Trackpad", then use your finger to sign your name on the touchpad, press "esc" to exit the trackpad, and then click "Save & Apply". You can change the font-weight of signature. If you are not satisfied with the result, click "Clear" and try again.

3. Sign PDF on Mac with Image. Add your signature in two ways, "Drop image to here" or "Select a File".

Step 5. Select the signature you want to use, drag it to the desired location, and then use the handle to adjust the size.

How to Sign a PDF on Mac with Preview?

To sign a PDF on Mac with Preview, you can use the trackpad, the built-in camera on your Mac, iPhone or iPad to capture the signature.

Step 1. Open your PDF file on Preview.

Step 2. In the Preview app on Mac, if the Marker toolbar is not displayed, click the Show Marker toolbar button, and then click the Signature button.

Step 3. Follow the on-screen instructions to create and store your signature. There are three options for you, you can choose the most convenient according to your requirements.

• Create a signature using the touchpad: Click "Touchpad", click the prompted text, use your finger to sign your name on the touchpad, press any key, and then click "Finish".

• Create a signature using the computer’s built-in camera: Click “Camera”. Point your signature (on white paper) directly at the camera. When the signature appears in the window, click Finish.

• Create a signature using iPhone or iPad: Tap iPhone or iPad. On your iPhone or iPad, sign with your finger or Apple Pencil. When the signature appears in the window, click Finish.

Step 4. Add the signature to the PDF.

Step 5. Select the signature you want to use, drag it to the desired location, and then use the handle to adjust the size.

How to Sign a PDF on Mac with Online PDF Tool?

Smallpdf is an all-in-one online PDF tool, there are many things of PDF you can do with this online tool, signing PDF is one of that.

Step1. Upload your PDF to “eSign PDF” tool.

Step 2. Create a new electronic signature to place on your document. You can sign your name using your trackpad, mouse or touch device, or you can sign your name by uploading an image, or sign your name with a camera.

Step 3. Click 'Finish' and download the signed document.

It's worth noting that online PDF tool is very convenient, but there are privacy security issues. If you want to sign a PDF with high security, you'd better avoid to use online tool.

Although you need to pay some money for PDF Reader Pro, it is worth a try. There are no privacy security issues on PDF Reader Pro. And it provides a free trial for all of you, you can click the hyperlink to get more details, and you can also click the ‘Free Download' to try this application for free.