If your PDF is too large to be sent via email, or you simply want to reduce your file’s size, it’s easy to compress PDF files on Windows 11. You have both desktop apps and online tools to do that.

Select "Add to rar." WinRAR is a free software and while it may differ from one PDF document to other, it can reduce the file size by as much as 25 percent.

Compress to ZIP or RAR Our third suggestion on how to reduce a PDF’s file size is to add it to a ZIP or RAR archive.