There are a few things that you can experiment with regarding how many pages a chart requires for printing.
(1) Click and drag the boxes around in the chart
(2) Choose a different font size for the text in the boxes
(3) Read about Trimming in the EasyChart Help menu
(4) Click the Edit menu, Copy Chart, and then paste that image into for instance a word processor. In there you can click on the pasted image and use the handles around the edges to resize. Experiment with page sizes, orientation and margins using Page Setup in your word processor File menu. Or, paste the image into an image editing program such as Paint Shop Pro and chop it up into smaller segments each of which can be resized and printed on separate sheets if desired.
All of the options to include or exclude whatever you wish in the chart boxes is controlled in EasyTree before you create the chart. Click the Charts menu, pick your desired chart, click the Layouts box, and click Define Layouts. Take a good look around in there and switch on or off whatever you wish. To include spouses, click Name Setup in the middle column, and click the Change button on the right. Choose your preferred Spouse option.