How to extend the plot area for large graphs in Grapher To expand the page edges so your graph fits on the page, click File | Page Setup. In the Page Setup dialog you can define a larger page. Updated November 28, 2016 Have more questions? Submit a request 2 Comments Date Votes 0 Darren Chan August 31, 2017 19:44 Page Setup doesn't allow changing of page edge - only page margins. Functionality to change pages edges is not available in v12? Is there another procedure to change Page Edges and/or add more than the default page sizes? 0 Katie Yoder August 31, 2017 20:48 Hi Darren, Grapher does not currently support setting a custom page size. I have added your vote for this functionality to our suggestion file. In the meantime, I find that changing the printer to a PDF print driver tends to provide more page size options. To change the printer that Grapher is pulling available page sizes from, click the Printer button in the Page Setup dialog, select the desired printer, and click OK. Thanks! Katie Please sign in to leave a comment.