Aspose PDF Page Height for one specific page (Aspose.Pdf.Document)

How can I set different page height for only one page in a PDF ? [ using (Aspose.Pdf.Document)] 

In the below code snippet I’ve created 2 pages (PagecurPageAND PagechartPage) , for the second page i.e. chartPage, I need to set a height based on some custom logic. So I did create a separate PageInfopageInfo1 and set the height, but it never worked. 

But if I do set height for the first PageInfopageInfo object then it works, BUT it set that height for ALL the pages. 

My requirement is to set a specific height for only one page, i.e., Page chartPage.  Please advise or help a for a solution. 

            Document doc = newDocument();

            Aspose.Pdf.License licensePDF = new Aspose.Pdf.License();

            PageInfopageInfo = doc.PageInfo;

            Aspose.Pdf.MarginInfo marginInfo = pageInfo.Margin;

            marginInfo.Left = 37;

            marginInfo.Right = 37;

            marginInfo.Top = 37;

            marginInfo.Bottom = 37;           

            // Added page.

            Page curPage = doc.Pages.Add();

            //Add the table into the paragraphs collection of section

            Aspose.Pdf.Paragraphs paragraphs = curPage.Paragraphs;

            //Add content/data for the page

              // Added New page.

                Page chartPage = doc.Pages.Add();    

                // add text fragment to paragraphs collection of Page object

                chartPage.Paragraphs.Add(textSearchCriteris);

                 PageInfopageInfo1 = chartPage.PageInfo;

                pageInfo1.Height = 4000;

Thanks

Sree