I downloaded, edited and printed 2 free Certificates from Microsoft and didn't have any problems, and I trust Microsoft. My favorite free editable Award Certificate is https://templates.office.com/en-us/Most-Improved-Player-certificate-editable-title-TM04040165 . I like it because it allows you to change the certificate Title (you can change "Most Improved Player" to whatever you want it to say by highlighting it and typing what you want it to say - like "Best Team Spirit" or "Great Defender Award"), and you can also fill in the Player's Name, the Team Name, who Presented it, the Date, AND you can customize the font color by highlighting the text and changing the font color. There are more choices at https://templates.office.com/en-us/Certificates - some are in Word but most are in PowerPoint.
If you want some awards or rewards to give out, consider our motivational soccer patches. They are inexpensive (10 for $5 with free shipping or 3 for $2 with free shipping) and we sell 32 kinds, including 12 colors of soccer balls, A, T, B, C, V, lightning bolts, Happy Face, Gold Star, Red Star, Blue Star, Silver Star, and more. You can see them at Soccer Patches Awards.
"Most Improved Awards"
Most Improved Offensive Player Award
Most Improved Defender Award
Most Improved Passing Award
Most Improved Player Award
Defensive Improvement Award
Most Improved Dribbling Award
Most Improved Throw Ins Award
Most Improved Goal Keeper Award
Most Improved Midfielder Award
Most Improved Forward Award
"Awards for doing the Best or the Most"
Most Assists Award
Best Assist Award
Best Defense Against Corner Kicks Award
Best Defense Against Goal Kicks Award
Best Passing Award
Best Throw Ins Award
Best Defender Against Throw Ins
Best Long Shot Award
Toughest Defender Award
Bravest Defender Award
Best Goalie Award
Best Goal Kick Award
Best Dribbling Award
Most Incredible Shot Award
Most Dependable Player Award
Best Teamwork Award
Rock Solid Defense Award
Best Ball Control Award
Best Practicer Award
Most Versatile Player Award
"Awards for Attitude, Effort, Character or Leadership"
(Several Players could win some of the following awards:)
Hustle Award
Good Sport Award
Winning Spirit Award
Most Fun Player Award
Best Effort Award
Leadership Award (you hope several will win this)
Team Spirit Award
Most Energetic Player Award
Best Listener Award
Role Model Award
Best Teammate Award
Communicator Award (for players who talk to teammates during games; "Man On", "Keeper", "Time", etc. See "Verbal Signals" in the Dictionary)
Love of the Game Award
110% Award
"Awards for Attendance and for Parents, Coaches and Sponsors"
Best Practice Attendance Award
Game Attendance Award
Team Manager Award
Assistant Coach Award
Telephone Champion Award
Best Team Supporter Award
Best Cheerer Award
Refreshments Leadership Award
Most Valuable Supporter Award
Couldn't Have Done It Without You Award
Most Valuable Sponsor Award