1.) Beat eggs well. Gradually add sugar. Beat until well combined. Mix together flour, soda, baking powder, salt, and cinnamon. Add to egg mixture gradually. Add pumpkin and pecans and mix. Then spray jelly roll pan WELL with no stick cooking spray. Place wax paper in sprayed pan. Saturate wax paper with spray. Pour mixture into pan and spread very thin. Cook in preheated 375 oven for 15-17 minutes. The cake will be slightly brownish on top. Cool 10 minutes or so.
2.) While this is cooling, sprinkle a dishtowel with a generous amount of powdered sugar.
3.) Invert cake onto powered sugar cloth. Remove wax paper. Fold the dishtowel edges around the cake & roll it up including the dishtowel to set the shape.