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How to Compress PDF in Mac OS X (Mavericks Included)

Need to compress PDF files on Mac, so you can easily email them or share them easily and freely? Here is the easiest way I know.

Emily Xiao
Posted by Emily Xiao | @Emily Xiao | Category: PDF Editing Tips
Published: Jul 15,2015 11:28 am / Updated: Nov 23,2015 14:42 pm

To email PDF files hassle freely or share PDF documents with workmates conveniently, sometimes, you might need to compress PDF files because if a PDF file is very large, then you can't email or upload it to the Internet. Mac users are very lucky. The default PDF viewer,Preview, on Mac can help you compress PDF: Open a PDF file in Preview; Click File menu and select Export; Choose Reduce File Size from the Quartz Filter drop-down list. Now you can reduce PDF size in OS X Mavericks with this option as well.

compress PDF in Mac

The above mentioned using Preview to compress PDF file size on Mac is useful. After you do this, when compare the current PDF file size with the original one, you could find that the new one is smaller. Sometimes, the PDF file could be reduced to 50%. However, some people also complain that the quality of the compressed PDF file is not as good as the original one. In this case, we offer another method to reduce PDF file size in OS X Mavericks. See the details below.

Step 1: Download and install Wondershare PDFelement for Mac

Wondershare PDFelement for Mac is the PDF tool that we're going to use to convert PDF to Word documents. Here you should download the Mac version and install it on your Mac. It runs well in OS X Mavericks, Lion, and Mountain Lion. If you have a Windows PC, please see how to reduce PDF file size on Windows PC >>

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Step 2: Upload PDF files and select the right format

Launch PDFelement for Mac. Drag and drop the PDF file that you want to compress on Mac to the app. And then click the little setting icon on each PDF item bar to select Word Document (.docx) as the output format.

reduce pdf file size mac

Step 3: Set a small font for output Word documents

Click Convert to convert PDF to Word documents. After the conversion, find the output word document by clicking PDFelement on the very top left > Preferences…> Destination.

Step 4: Reduce PDF file size on Mac

Open the Word document. Held down Command and A, and change the font to a smaller one. And then click File > Print. In the new window, on the very bottom left, click "Save as PDF". Find a place to save the PDF file and click "Print". That's it.

reduce pdf size mac

Compared with the way to compress PDF on Mac with Preview, this way takes much time, but it will not change the quality of the PDF file that much. When viewing this PDF file, you can zoom in easily and freely.

Apart from the above solution, you can also turn to the optimize function of Wondershare PDFelement for Mac to compress PDF on Mac.

Step 1: Open the PDF files with Wondershare PDFelement for Mac.

You can drag and drop the files you are going to compress to the program ,or you can choose the files and right-click on them, then click Open with Wondershare PDFelement.

Step 2: Move to the Home tab and click the File menu. Choose the Optimize PDF button and the compression process will be finished in seconds.

When processes to the optimize window, you will see a drop-down menu of compression quality for your choice. Choose the one as you need, then you can see how much percentage the file has been compressed. Preview the files or save them as you like.

compress pdf mac

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