How to Print Double-Sided (Duplex Printing)

If your printer has automatic duplex

1. Open the print dialog's Properties/Preferences.
2. Find the "Two-Sided" or "Duplex" setting and turn it on.
3. Choose the binding edge — "Long edge" for a document you'll read like a book (most common), "Short edge" for something you'll flip like a notepad.

If your printer doesn't have automatic duplex

1. Print the odd-numbered pages first — most print dialogs have an "odd pages only" option under page range settings.
2. Once that batch finishes, take the stack exactly as it came out (don't reorder it) and place it back in the tray — flipped according to your printer's manual (this varies by model; some want the stack flipped top-to-bottom, others flipped left-right).
3. Print the even-numbered pages. Do a short 2-page test run the first time to confirm which way your specific printer wants the paper flipped before committing a long document.

Common mistake

The most common double-sided printing problem is pages coming out with the back side upside-down relative to the front. If that happens, your printer's binding edge setting (long vs. short) needs to be switched.