Developed 30 years ago by Adobe, the Portable Document Format, or PDF, is widely used around the globe for viewing and signing documents – everything from corporate annual reports and scientific ...

PDFs remain a common way to share documents because they preserve formatting across devices and platforms. Sometimes, however, you end up with several separate PDFs that would be easier to handle as a ...

The Kindle Scribe is a new hybrid e-reader and e-note. You can view and edit PDF files, freehand draw and also conduct handwriting notes in Kindle books. PDF files are a different beast on the Scribe.

You can edit a PDF on your Mac with Preview, an app that's built-in to your computer from the start. You can use this program ...