Using printer, it can make it into flatness
Step 1: Put Into Printer
Using your hand to flat paper as much as you can
Then, put into printer
Step 2: Print It!
Using MS-Word to print blank, the printer will scroll paper into it. Heat, rolling in printer will make it to be flat.
Try to print more time if needed
More detail of those step, please visit my blogspot http://engineer2you.blogspot.com/