Various free and paid software tools allow you to compress your PDF files while retaining their high quality. Such software includes CocoDoc, Adobe Acrobat, PDF2GO, PDF Compressor, and Preview.

However, the interesting part is learning exactly how to reduce a PDF’s file size. To achieve this, there are several tools available, but the most convenient and time-saving ones are below: ...

Reduce a PDF’s File Size Using Preview Open Finder and find the PDF you want to resize. Double-click the file, and it should open in Preview. If you’ve changed the default program to open PDFs ...

Here is the list of the top 5 websites and tools which can reduce the size of a PDF file without losing the quality.

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. Click "Apply." Save your PDF.

How to reduce PDF file size on a Mac computer with Preview 1. Open the PDF — if Preview isn't your default app, right click the PDF, then select Open with followed by Preview.