PDF files have the option to let you share and comment on documents in a wide range of applications. Adobe Acrobat Reader and other free PDF programs offer a subset of the capabilities of the paid ...

Interactive PDFs are PDF documents that can take some form of user input. These may include buttons that will perform functions when pressed. Forms that users can fill out. Interactive PDFs can also ...

If you buy something from a Verge link, Vox Media may earn a commission. See our ethics statement. If you’ve ever downloaded a scanned document, you know the frustration that comes with trying to ...

Like the GIF (that's Graphics Interchange Format), the PDF (Portable Document Format) has survived and flourished through the digital age. That's partly because of its versatility: It's the go-to ...