Long PDFs slow people down for all kinds of reasons. Sometimes the file is too dense to skim quickly. Sometimes you need the key points without reading every page. Sometimes the document is in another ...

Preview is one of the most useful apps that ships with your Mac.

To sharpen an auger bit, you need a specialized auger-bit file. Hold the auger bit upright in a vise, then file the bit’s lip with the file’s edge [1]. Turn the auger bit in the vise and sharpen the ...