If you are like me and you like to use Google Draw you may want to have your canvas be a particular size.
For general canvas resizing, look to the bottom right corner of drawing for the “grippy bars.” Click and drag this corner will resize the canvas. Warning: immediately after resizing the document adjusts the zoom so that it appears that nothing has been changed when really the size of the image is smaller.
Enter in the number of inches or pixels you want your drawing to be. Try out the Ruul chrome extension to help you determine what size you need your canvas to be.