You open an old file to print it for a meeting. Suddenly all the fonts are wrong. The spacing is off. Half your bullet points have shifted two inches to the left. These may seem like small things, but they add up to make a document look unprofessional. Chances are, that file is an older document format like RTF. Luckily, the fix is easier than you’d think. To keep the formatting intact when you print or share it, just convert RTF to PDF.