Resizing a PDF on Mac: A Step-by-Step Guide

PDF files are commonly used for sharing documents across different platforms due to their universal compatibility. However, there may be times when you need to resize a PDF file on your Mac for various reasons such as reducing file size or fitting the content onto a specific page size. In this guide, we will walk you through the steps to resize a PDF on Mac.

Using Preview App

1. Open the PDF File: Locate the PDF file you want to resize and double-click to open it in the Preview app. Preview is the default application for viewing images and PDFs on Mac.

2. Select Page Size: Click on ‘File’ in the top menu bar and choose ‘Print’ from the drop-down menu. This will open the Print dialog box.

3. Adjust Paper Size: In the Print dialog box, locate the ‘Paper Size’ option and click on it to reveal a list of paper sizes. Choose a smaller paper size than the original document if you want to reduce its dimensions.

4. Scale Content: You can further adjust the scale of content by clicking on ‘Scale’ in the same Print dialog box. Here, you can specify a custom percentage to scale down or up the content accordingly.

5. Save Resized PDF: Once you are satisfied with the changes, click on ‘PDF’ button in the bottom-left corner of the Print dialog box and select ‘Save as PDF’. Choose a destination folder and save your resized PDF file.

Using Online Tools

If you prefer not to use Preview app or require more advanced resizing options, there are several online tools available that can help you resize your PDF files easily:

1. Smallpdf: Smallpdf offers a range of tools including PDF resizing. Simply upload your file, choose your desired dimensions or percentage scale, and download the resized PDF back to your computer.

2. ILovePDF: ILovePDF is another popular online platform for editing PDF files. It allows you to resize pages, compress files, merge documents, and more with just a few clicks.

3. PDF2Go: With PDF2Go, you can resize your PDF documents quickly without any hassle. Upload your file, adjust page settings as needed, and download the resized version instantly.


Resizing a PDF file on Mac can be done easily using built-in applications like Preview or online tools that offer more customization options. Whether you need to shrink a large document for easy sharing or adjust page dimensions for printing purposes, following these steps will help you achieve your desired results efficiently.