How to reduce size of pdf on mac

PDFs are extremely versatile for business, particularly for sending different types of formatted documents and media in one multi-page file. Brochures, presentations, contracts, text documents, portfolios and newsletters are compatible across multiple platforms when sent as PDFs. The problem: With multiple pages, images and format sizes, PDFs can become huge, making them difficult to email and download. If you are using OS X, two available options for reducing PDFs include using Preview and an often-forgotten application called ColorSync Utility. Preview offers a one size-reduction option which is useful for simple documents where loss of quality aren't of great importance. For more detailed documents with images, ColorSync Utility provides a preset to compress PDFs, and also enables you to create your own custom settings for higher quality.

Preset Resize - Shrink PDF

  1. Open your “Applications” folder on your Mac. You can access the Applications folder through LaunchPad and your Finder.

  2. Open the “Utilities” folder.

  3. Double-click the “ColorSync Utility” icon to open the application.

  4. Click “File” in the top menu bar, then click “Open.”

  5. Locate the PDF you want to resize on your Mac and click “Open.”

  6. Click the tab next to “Filter” at the bottom of your document.

  7. Click “Reduce file size.” The filter provided in ColorSync Utility reduces the scale of your PDF by 50% and restrict images to a maximum of 512 by 128 pixels.

  8. Click “Apply.” Save your PDF.

Custom Resize Settings

  1. Click “File” in the top menu bar, then click “New Window” in ColorSync Utility.

  2. Click the gray circle with a white arrow to the right of “Reduce File Size,” then click “Duplicate filter.” This will create a second copy of the same filter called “Reduce File Size Copy.”

  3. Click the gray arrow to the left of “Reduce File Size Copy” to expand the settings.

  4. Click the gray arrow to the left of “Image Sampling.”

  5. Type the scale, resolution and minimum and maximum pixels you want to apply to any images in your PDF. Click the tab next to “Quality” to set your image quality to low, medium or high.

  6. Click the gray arrow next to “Image Compression.”

  7. Click the tab next to “Mode” and select “Automatic,” “Uncompressed” or “JPEG.”

  8. Click the slider next to “Quality” and move it to the quality level you want.

  9. Open the PDF you want to resize and apply the Reduce File Size Copy filter as described in the steps 6 and onward of the previous section.

Preview

  1. Open Preview, click "File" and "Open," then locate your PDF. Click "Open."

  2. Click "File," then "Export."

  3. Click the location on your hard drive where you want to save the PDF, such as "Desktop" or "Documents."

    The majority of PDF files contain many graphics and photos, making the file size reasonably heavy. This tends to be a problem, especially when you want to send this file via email! Heavy PDFs frequently cause issues since they can surpass the size limit imposed by online email services. In this instance, it is necessary to reduce PDF size on Mac without losing quality. But how?

    If you have no idea, don't fret. You can get help on this page. Here, we will introduce some best free PDF compressor software, and also show you how to make PDF size smaller on Mac in detail. Now, let's dig into it!

    How to Reduce PDF Size on Mac Without Losing Quality in Preview (Free)

    For Mac users, there is a default program that can assist you in minimizing PDF files on Mac, and that is Preview.

    With this program, you can reduce PDF size in four simple steps. In addition, this freeware allows you to browse, markup, edit, and merge PDF files with ease, or display various file formats like TIFF, PNG, JPEG, GIF, BMP, and PDF.

    How to downsize PDF files on Mac with good quality:

    Step 1. Open the PDF file. If you have Preview as your default PDF Viewer, it will open automatically. However, if you have another default PDF viewer, right-click on the PDF file, select "Open With, " and click on "Preview."

    Step 2. After the file is opened, go to the top toolbar and click on "File" then "Export."

    Step 3. A new pop-up window will appear on the PDF. Click on the drop-down menu next to "Quartz Filter". Select "Reduce File Size." Once done, click "Save" to export the decreased PDF. 

    Reduce PDF size on Mac with Preview

    How to Make PDF Smaller on Mac with Good Quality using Adobe Acrobat

    Adobe is the original inventor of the PDF format, and ever since, it has also produced a popular and comprehensive tool that allows you to manage such documents effectively. When it comes to reducing the PDF size on a Mac, you can count on this software. Moreover, it allows you to read, modify, browse, and enter information into PDF files.

    Here's how to shrink PDF file size on Mac without quality loss:

    Step 1. Launch Adobe Acrobat on your Mac. Then click "Tool" > "Optimize PDF" to import your target PDF file.

    Optimize PDF

    Step 2. In the top menu, click on "Reduce File Size," then select the proper compatibility settings and click on "OK."

    Reduce PDF size on Mac using Adobe

    Step 3. Once done, select a folder to save the compressed PDF file on your Mac.

    How to Compress PDF File on Mac with Foxit Reader

    Another tool we'd like to talk about is Foxit Reader, which is a good alternative to Preview on Mac. By installing this program, you can do all sorts of editing features to your PDF files, including compressing PDF files. If you don't know how to deal with it, you can check the following steps:

    Here's how to make PDF smaller on Mac using Foxit Reader:

    Step 1. Open Foxit Reader on your Mac.

    Step 2. Click on "Files", then you will see a drop-down menu. Click on the option "Reduce File Size."

    Reduce PDF size mac Foxit

    Step 3. Then, you will be required to find the PDF that you want to compress. Once you open the file, click on "Audit Storage Space". This will show you the size of the PDF. Then, you have to choose how much do you want to reduce the file's size. 

    Step 4. After you select the desired file size, click on "OK" to finish the process.

    How to Decrease PDF Size on Mac Online for Free

    If you are a one-time user, you may prefer the online tools to downsize your PDF files. Given that, we will show you an excellent online PDF compressor to help you shrink PDF size on Mac without downloading any other third-party programs. And that's Smallpdf.

    Here's how to use Smallpdf to downsize PDF on Mac online:

    Step 1. Go to its official website, and click "CHOOSE FILES" to upload your PDF file.

    Reduce PDF file size on Mac online

    Step 2. Once imported, click "Compress" to start the process.

    Step 3. At last, you can hit "Download' to get the compressed PDF on your Mac.

    Bonus: How to Compress PDF into Small Size on Windows

    If you sometimes need to reduce PDF size on Windows, you can rely on EaseUS PDF Editor - one of the best PDF compressor software. This program lets you compress your PDF with a few steps. 

    Before compressing, you also can modify your files based on your needs, like adding text, inserting shapes, or adding and removing watermarks to your PDF files. Last but not least, you can password protect PDF files to protect them from unauthorized viewing and copying. Now click the below button to try this software.

    Step 1. Launch EaseUS PDF Editor and click on the "Open Files..." button to import the PDF document.

    Import PDF files

    Step 2. Choose the "Compress" option in the top toolbar, then select "Reduce File Size..." from the drop-down menu.

    Reduce PDF size

    Step 3. A window will pop up and ask you to set the output folder and file name for the compressed PDF. Then, click on the "Save" button to start the compressing process.

    Save compressed PDF

    The Bottom Line

    After reading this post, you will find that it is extremely easy to reduce PDF files' size on a Mac computer. Now choose any solution we mentioned above to compress your PDF document!

    Reduce PDF Size on Mac FAQs

    1. How do you reduce the size of a PDF on a Mac without losing quality?

    Preview can help you reduce PDF size on Mac without losing quality:

    • Open PDF with Preview.
    • Click File > Export
    • Choose Quartz Filter > Reduce File Size > Save.

    2. How do I reduce the MB size of a PDF?

    To reduce the MB size of a PDF, all you need is a PDF compressor. Here are some popular ones:

    • EaseUS PDF Editor
    • Adobe Acrobat
    • PDF Filler
    • Smallpdf

    3. How do I reduce a PDF size by 50 %?

    With some online tools' help, you can easily reduce a PDF size by 50%. Just enter the online PDF compressor on Google, and then choose one to start your task.

    How do I reduce the size of a PDF on a Mac without losing quality?

    To do so, just double-click a PDF in Finder to open it in Preview. Once it's loaded, select File > Export from the menu bar at the top of the screen. In the resulting window, open the Quartz Filter dropdown box and select Reduce File Size before exporting the file, which will make it smaller.

    How do I make my PDF file size smaller?

    Reduce File Size of PDF File in Acrobat Pro.
    With Acrobat Pro open, go to File > Open..
    After your file is open, Go to File > Save as Other > Reduced Size PDF.....
    Select the Acrobat version that is compatible with the features in your PDF file. ... .
    Re-name your file and Click Save..