Step 1: Gather materials
Step 2: Make the Sudokus
First, create a puzzle. Next, save it. You want to do this a lot. I like to create books of 40 puzzles. When you print them (coming up) they will be double sided, with four puzzles per side. My 40 puzzles become a 20 page book. You decide how many you want to make and print.
Step 3: Print multiple puzzles
An Open File type dialog will pop up. Select all the puzzles you created in the last step, and click on Open.
The printer dialog box will pop up. Set the printer to print double sided, if you can. If not, you can do half your puzzles in one print, flip the paper, and print the other half. Or, you could just print it one sided. Doesn't really matter.
Step 5: Cut the puzzles
2) Cut them in half again. You'll end up with two lengths of paper, so you'll need to even them up.
3) Cut them to even them up.