Sometimes the most obvious answer is also the correct one, as is the case when it comes to using Adobe Acrobat to edit PDFs for free.

Editorial Note: Forbes Advisor may earn a commission on sales made from partner links on this page, but that doesn't affect our editors' opinions or evaluations. A beginner or a pro using a PDF editor ...

Use Preview: Open the PDF in Preview, click File > Export, select “Reduce File Size” under Quartz Filter, and save. Use ColorSync Utility: Open the PDF in ColorSync Utility, click File > Export, ...

PDF files are popular, particularly in the business world, because they are cross-platform, high-fidelity documents that look the same no matter what device you view them on. But they're very ...