How to Annotate a PDF on Mac(OS Sierra Included)？

Learning how to annotate a PDF on Mac is extremely useful when you want to convey information or collaborate with others. This is especially useful when the collaboration is taking place via email. Here we look at how to annotate PDF on Mac.

Method 1: Annotate a PDF on Mac with Preview

Even though Preview is categorized as a PDF and image viewer, a little-known feature is that it also allows you to annotate PDF files on Mac. You can add an oval, rectangle, note or link to any PDF document simply by going to the Tools menu and choosing Annotate.

1. Open the PDF you want to annotate in Preview.
2. Go to the Tools Menu and choose Annotate, which will show you a dropdown menu of PDF annotation tools. Choose the PDF annotation tool as needed.

Method 2: Utilize PDF Editor to Annotate a PDF on Mac with More Options

Annotating PDF files with Preview on Mac is workable. But it does not offer everything needed for more than the basics, also there are a lot of users who tried that reported that the version of Preview has a disastrous bug. After your PDF is annotated, the text becomes subtly corrupted. If you follow the advice, you are possibly putting your important data at risk.

To annotate and add notes to PDF files safely and efficiently, you are recommended to use a professional PDF Annotator, Cisdem PDF Manager Ultimate, which offers all regular annotation tools. It can mark and annotate any PDF on mac easily, including, Text Box, a free-hand drawing tool, sticky notes, comments, highlight, markup tools and so on. While as a professional PDF editor, it enables users to edit, convert native and scanned PDF to editable formats, manage(split, merge, compress,etc), comment, sign, protect, tag, etc., to manilupate your PDFs easily and efficiently.

Download the free trial version to take a try!

Let's get to annotate a PDF on mac:

Step 1. Add PDF Files

Double click on the icon to launch pdf annotator for mac, Drag and drop the PDF file that you need to annotate. After that, you just need to double click the PDF file to enter the editing pane.

Step 2. Annotate a PDF on Mac by Using Different PDF Annotation Tools

In the editing pane, you can add various stuff to annotate a PDF, just click to activate this feature.

• Add texts, notes, comments, etc. to PDF files

In the editing toolbar you can click  to add text or click  to add comments, notes, or other stuff to your PDF files. Select the text tool, then click your document where you want to place a text box or comment box. You can then type text in the text box.

• Highlight PDF files

If you want to highlight a specific text in your PDF files, you can do it by selecting the text first and click  to highlight the text you want.

• Choose From More Annotation Options

: Click to draw a circle.

: Click to draw a box.

: Select texts and click this button to underline them.

: Select texts and click this button to cross them off.

: Click to draw an arrow.

: Click to draw a line.

If you want to delete an added content, you need to select it first and then click “delete” button on the keyboard. If you want to remove multiple of them, you then need to click ,select them all, and then click “delete” button on the keyboard.

Method 3: Use Free PDF Annotator on Mac

Of course, if you want an alternative to annotate PDF on mac for free, you can go to online free PDF editor which includes the PDF annotation feature. Here we take PDFescape as an example to show how to annotate a PDF on mac.

1. Go to PDFescape
2. Upload the PDF that you want to annotate to the server
3. Choose "Annotate" and select the PDF annotation tools as needed
4. Once you have finished annotating a PDF on mac, save and download the annotated PDF