We all know how important PDF files are. They literally keep millions of businesses on the same page. The best PDF editors we've tried - yes, even free versions - let you create and design seriously ...

Many of the work and personal documents we handle today are PDF (Portable Document Format) files. For instance, bank statements, credit card bills, official contracts, work documents, utility bills ...

From Adobe Acrobat to free online editors and built-in tools, here’s how to merge multiple PDFs into one document.