Rotary cutting mat
Clear tape (matte finish)
Print the test square provided on the pattern and verify that it's the correct size. In my example, the test square must be 4". If your test square size is incorrect, be sure to go back and make print setting adjustments (setting the printer to "actual" size is the common fix) until it's right on. Once everything is correct, print your pattern.
Place ruler along the left line of pattern frame and cut off margin using a rotary cutter. Do the same for the bottom margin.
Align numbers or markings on the pattern and tape. Because you cut the left margins off already, you simply need to slide the left page under the right. Tape pages together in rows from left to right.
I hope this helps you enjoy your PDF patterns!