If you've scanned a document with your scanner or phone and have the image as a JPG file, it's often useful to convert that image to a PDF. Using Adobe Acrobat, you can even automatically process text ...

Apple Pages, like Microsoft Word, is a full-featured document creation tool. Because you can use it for free on macOS, iOS, and iPadOS, this makes it a solid choice for creating reports, contracts, ...

You can crop a PDF on your Windows computer for free using the cropping tool, without having to purchase Adobe Acrobat.

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