Combine PDFs in Preview on Mac: A Comprehensive Guide (And a Simpler Solution)

May 8, 2025 10 min read

In today's digital age, the need to consolidate multiple PDF files into a single, manageable document is a common requirement. Whether it’s for archiving important records, streamlining document sharing, or simplifying complex projects, merging PDFs can significantly enhance efficiency. Apple's Preview application offers a built-in method for combining PDFs, which is convenient for Mac users. However, for more advanced features and a smoother experience, consider exploring Breeze PDF as an alternative.

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This comprehensive guide will walk you through the process of combining PDFs using Preview on your Mac. Additionally, we'll introduce you to a potentially simpler and more feature-rich solution with Breeze PDF. By the end of this article, you'll be equipped with the knowledge to choose the best method for your specific needs.

Why Combine PDF Files?

Merging PDF files offers several compelling advantages in both professional and personal contexts. First, it simplifies the storage and review process of related documents. Instead of searching through multiple files, you can access all the necessary information in a single, organized PDF. This consolidation significantly reduces the time and effort required to manage your digital documents.

Second, combining PDFs streamlines the process of sharing documents with colleagues, classmates, or family members. Sending one comprehensive file is much more efficient than sending multiple attachments, reducing the risk of missed files or confusion. Finally, merging PDFs contributes to better organization and reduces clutter, creating a more efficient and manageable digital workspace. Using Breeze PDF, you can even create fillable PDFs to collect data before you combine them.

Method 1: Combining PDFs Using Preview on Mac (Step-by-Step Guide)

A. The Traditional Drag-and-Drop Method

The drag-and-drop method in Preview is a straightforward way to merge PDFs if you need to quickly combine files. Start by opening all the PDF documents you want to combine using Preview. Once the documents are open, navigate to the "View" menu at the top of your screen and select "Thumbnails" to display page previews in the sidebar of each document.

Now, simply drag the thumbnail images of the pages you wish to add from the sidebar of one PDF to the sidebar of the other PDF. This allows you to visually arrange and combine the pages as needed. To insert an entire PDF into another, drag the PDF icon directly from your Finder window into the sidebar of the open document in Preview.

B. Inserting Pages from a File

Alternatively, you can use the "Insert" function in Preview to add pages from another PDF file. Begin by opening the PDF in Preview to which you want to add more pages. Enable the Thumbnails sidebar by navigating to "View" > "Thumbnails," or by pressing Option + Command + 2.

Select the page thumbnail in the sidebar where you want to insert the pages of the other document. Next, go to "Edit" > "Insert" > "Page from File." A file selection window will appear, allowing you to choose the PDF document you want to add. After selecting the PDF, click "Open" to insert the pages.

Once the pages are inserted, save the merged document by going to "File" > "Export as PDF" to ensure all changes are saved correctly.

C. Rearranging Pages: How to Reorder

After merging your PDFs, you might need to rearrange the order of the pages. This is easily done within Preview by simply dragging the thumbnail images in the sidebar to their desired positions. Click and hold on a thumbnail, then drag it up or down the sidebar until it is in the correct sequence within the document.

This intuitive drag-and-drop functionality allows you to customize the page order quickly and efficiently, ensuring your combined PDF is perfectly organized. Review the thumbnails carefully to make sure the pages flow as you intended.

D. Important Considerations for Preview

When using Preview to combine PDFs, it's important to be aware of its automatic saving feature. Preview automatically saves changes to the original file, so it’s a good practice to duplicate your files before merging. To duplicate a file, go to "File" > "Duplicate" in Preview. This ensures that your original files remain intact in case you make any unintended changes during the merging process.

Additionally, be mindful of the potential increase in file size when combining multiple PDFs. Large file sizes can make sharing and storing documents more challenging. If file size becomes an issue, consider using Breeze PDF, which offers compression tools to reduce the overall file size without significant loss of quality.

Method 2: Combining Files in Finder via Quick Actions

Mac's Finder also offers a convenient way to create PDFs from various files. Select the files you want to combine, right-click, and choose "Quick Actions" > "Create PDF." This will automatically generate a single PDF from the selected files. This is a quick and easy method for simple PDF creation, though it lacks the advanced features of Preview or dedicated PDF editors.

Limitations of Preview

While Preview is a handy tool for basic PDF tasks, it has limitations when it comes to more advanced PDF management. For instance, Preview may struggle with very large files, potentially causing the application to slow down or become unresponsive. Its editing capabilities are also limited compared to dedicated PDF editors; you may find it difficult to perform complex editing tasks or annotations.

Furthermore, Preview lacks advanced features such as OCR (Optical Character Recognition) for editing scanned documents or the ability to convert PDFs to other formats. This is where a more robust solution like Breeze PDF becomes essential. If you need advanced features or encounter limitations with Preview, consider exploring the capabilities of Breeze PDF for a more comprehensive PDF management experience.

Method 3: Combine PDF Files Free Using Online Tools with Mac

Several online tools offer free PDF merging capabilities for Mac users. Typically, these tools require you to drag and drop your files into a designated drop zone on their website. Once the files are uploaded, you may have the option to reorder them according to your preference.

After arranging the files, you usually click a button labeled "START NOW" or something similar to initiate the merging process. Once completed, the combined PDF is available for download directly to your computer. While these tools are convenient, always exercise caution and ensure the website is reputable to protect your files' security.

A Simpler Solution: Breeze PDF

Breeze PDF presents a user-friendly and feature-rich alternative to Preview, designed to simplify PDF merging and other PDF tasks. With its intuitive interface and comprehensive toolset, Breeze PDF makes PDF management more accessible and efficient. This is especially useful if you need to add a signature to fillable PDF before merging.

Unlike Preview, Breeze PDF offers functionalities that go beyond basic PDF editing, making it suitable for both simple and complex PDF-related tasks. Here are some key features of Breeze PDF that distinguish it from Preview.

  • Cloud Storage and Organization: Breeze PDF offers cloud storage options, allowing you to store and organize your PDF files securely in the cloud, making them accessible from any device.
  • Advanced Editing and Annotation: Unlike Preview, Breeze PDF provides a wide range of advanced editing and annotation tools, including highlighting, underlining, adding comments, and inserting shapes and signatures.
  • Conversion to other formats: Breeze PDF enables you to convert PDFs to various other formats, such as Word, Excel, PowerPoint, and image files, providing greater flexibility in document management.

How to Combine PDFs Using Breeze PDF (Step-by-Step)

  1. Sign Up and Log In: Create an account on Breeze PDF and log in to access the platform. However, you don't even need to sign up. Breeze PDF is 100% private, meaning your documents are never sent to a server. They stay on your device. All the magic happens in your browser!
  2. Upload Files: Upload the PDF files you want to merge to the Breeze PDF platform.
  3. Merge Files: Select the uploaded files and choose the "Merge" option. Breeze PDF will combine the selected PDFs into a single document.
  4. Download the final product: Once the merging process is complete, download the merged PDF file to your computer.

Additional PDF Tasks with Breeze PDF

Breeze PDF offers a suite of other PDF functionalities beyond merging, making it a comprehensive solution for all your PDF needs. These functionalities include:

  • Compressing PDFs
  • Splitting PDFs
  • Editing PDFs
  • Password Protection

These features, combined with its user-friendly interface, make Breeze PDF an excellent choice for managing all your PDF-related tasks efficiently and securely.

Troubleshooting Common Preview Issues

While using Preview to combine PDFs, you might encounter some common issues. If you have difficulty combining specific pages, ensure you're properly selecting and dragging the thumbnails from one document to another. Sometimes, users may accidentally drag the entire document instead of individual pages.

If pages are displayed in the wrong order, simply rearrange the thumbnails in the sidebar by dragging them to their correct positions. If you experience problems saving the merged file, try using the "Save As" or "Export" option to create a new file, ensuring that all changes are properly saved.

In case you're unable to rearrange pages, verify that the thumbnails are visible by selecting "View" > "Thumbnails." If the combining process isn't executing as expected, double-check that you're following the correct procedure, which involves viewing the thumbnails and dragging them between documents.

Conclusion

In summary, this article has explored several methods for combining PDFs on a Mac, including using the built-in Preview application, Finder Quick Actions, and free online tools. While Preview offers a convenient built-in solution for basic PDF merging, it has limitations in terms of advanced features and file management capabilities. Using these methods, you can create fillable PDFs to collect data before you combine them.

Breeze PDF emerges as a more comprehensive and user-friendly alternative, providing advanced features such as cloud storage, advanced editing tools, and conversion to other formats. For a more robust and efficient PDF solution, we encourage you to visit Breeze PDF and explore its capabilities.