This article describes ways to reduce the size of a PDF file using Microsoft programs, on a Mac, and on a smartphone when PDF files are too large for a particular purpose, such as uploading to a website or sending via email.
How to Compress PDF File Size Without Losing Quality – Complete Guide
When you create a PDF with Microsoft programs like Word, Excel, and PowerPoint, there’s an easy way to make sure the file size is as small as possible. Here’s how it works in Word 2019, 2016, and 2013:
Open your Word document. Select File.
On the next screen, under Export, select Create PDF/XPS Document.