You can combine multiple PDF files into a single, easy-to-share document using simple software on your Mac computer or Windows PC. Here's how.

The Microsoft Edge browser is the default app for PDF files on Windows PCs. However, you can easily change your default PDF viewer to Adobe’s Acrobat Reader DC for files saved to your Windows PC.

You can convert Apple's HEIC files to PDF on a Mac or Windows computer using the free Convertio website.

Depending on the scope and breadth of your PDF editing needs, you might find that a free option is perfectly sufficient. Read on for our recommendations of the best free PDF editors.