In the digital age, PDFs have become a staple for sharing documents, reports, and other essential files. However, reading and navigating these files can sometimes be challenging, especially when you need to annotate, highlight, or take notes. This is where a PDF annotator comes in handy, and for Mac users, there are several robust options available.

PDF annotators are tools that allow you to interact with PDF documents, enabling you to mark up, comment on, and organize your PDFs. They are particularly useful in academic, professional, and creative environments where collaboration, note-taking, and document review are common.

Built-in PDF Annotator: Preview
Before exploring third-party options, it's worth noting that macOS has a built-in PDF annotator within the Preview app. Preview offers a range of annotation tools, making it a convenient choice for basic PDF markup.

Preview's annotation tools include a highlighter, pen tool, text selection, and sticky notes. It also supports adding shapes, signatures, and text boxes. To access these tools, simply open a PDF in Preview and click on the 'Show Markup Toolbar' button in the toolbar.
Pros of Using Preview

Preview is a native macOS application, making it easily accessible and familiar to Mac users. It's lightweight, fast, and doesn't require any additional installation. Moreover, it's free to use, as it comes pre-installed with macOS.
Preview also integrates well with other macOS features, such as Continuity Camera, which allows you to scan documents directly into a PDF using your iPhone or iPad.
Cons of Using Preview

While Preview is sufficient for basic annotation needs, it lacks advanced features found in dedicated PDF annotator software. For instance, it doesn't support cloud sync, collaboration tools, or complex annotation features like strikeouts, underlines, or different highlight colors.
Preview also doesn't offer a wide range of export options. You can't export your annotations as a separate file, which can be limiting when you want to share or archive your notes.
Third-Party PDF Annotator Options for Mac

If you find Preview's limitations restrictive, there are several third-party PDF annotator apps that offer more advanced features. These apps often provide a more robust set of tools, better organization options, and enhanced collaboration capabilities.
Some popular third-party PDF annotator options for Mac include PDF Expert, GoodNotes, and Xodo PDF. Each of these apps offers a unique set of features, so the best choice depends on your specific needs and workflow.


















PDF Expert
PDF Expert is a feature-rich PDF annotator that offers a wide range of tools for marking up, organizing, and editing PDFs. It supports cloud sync, collaboration, and has a clean, intuitive interface. PDF Expert also offers advanced features like form filling, signature creation, and OCR (Optical Character Recognition) for converting scanned documents into searchable, editable PDFs.
However, PDF Expert is a paid app, with a price tag that might be a barrier for some users. It also has a steep learning curve, which can be overwhelming for those new to PDF annotation.
GoodNotes
GoodNotes is another powerful PDF annotator that stands out for its handwriting recognition and note-taking capabilities. It supports Apple Pencil for precise drawing and writing, and it can convert handwritten notes into searchable text. GoodNotes also offers cloud sync, collaboration, and a clean, user-friendly interface.
Like PDF Expert, GoodNotes is a paid app. It also has a limited free trial, so you'll need to purchase the app to access its full suite of features.
Xodo PDF
Xodo PDF is a free, open-source PDF annotator that offers a surprising range of features for a free app. It supports cloud sync, collaboration, and has a clean, intuitive interface. Xodo PDF also offers advanced annotation tools, like strikeouts, underlines, and different highlight colors. It even supports form filling and signature creation.
While Xodo PDF is free, it does have some limitations. It lacks some of the more advanced features found in paid apps, like OCR and handwriting recognition. It also has a less polished interface compared to its paid counterparts.
In the world of PDF annotation, there's no one-size-fits-all solution. Whether you choose to use the built-in Preview app or opt for a third-party PDF annotator, the best tool for you depends on your specific needs, workflow, and budget. So, explore the options, try out the free trials, and choose the PDF annotator that best fits your requirements.