Rebecca Torchia is a web editor for EdTech: Focus on K–12. Previously, she has produced podcasts and written for several publications in Maryland, Washington, D.C., and her hometown of Pittsburgh.

A PDF file is one of the most widely used document types. It can be shared across multiple platforms, compressed into a smaller size easily, and cannot be edited without leaving a digital footprint.

Online learning has become one of the most accessible and most convenient means of modern education. Apart from offering classes online and storing digital files, schools can also share these digital ...

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