A spacious interface lets you choose among functions like merging and splitting PDFs files. If you want the free product, uncheck the option in the installer to download the Enhanced version, which is free to preview, but $49 to keep. If your PDF-managing needs are minimal, install the free, open-source PDFsam. To merge or manage PDF files, you need either a free, but limited, third-party productivity app or one of the many well-designed commercial apps. Windows 10 lets you view PDF files in the Edge browser, but doesn't let you do anything with them. When you need to combine PDF files in Windows, you may decide that you wish you had a Mac, where the Preview app gets the job done quickly and easily. That site may want to profit from your data in ways you won't like. Your PDF files contain invisible metadata, potentially identifying you and your system, and you may not want to give that metadata to a website that offers free editing features. There are also online apps that offer to combine and edit PDFs that you upload, but I don't recommend any of them. If you use Windows, you need third-party apps, but you can find free open-source apps that do the job. If you use a Mac, you have the only tool you'll need already built into the macOS operating system, though you can find more flexible and full-featured solutions if you buy commercial third-party apps. How do you get them all into a single PDF? These questions are all the more pressing during the pandemic, because, let's face it, one of the rare positive outcomes of so many of us working from home is that we're going more paperless than ever-and that means PDFs. Or maybe you have four or five sections of a report that you've printed to separate PDF files from Word, Excel, and a photo editor. And, maybe more to the point, it saves you the trouble of tracking down and resending files if they lose track of some of them. You don't want to inflict a half-dozen PDF files on the accounting department, because managing and sorting them all is more work for you.

Combining multiple related PDFs into a single file is an excellent productivity hack.

How to combine pages in word