PageSize.cs
 // // This code is part of Document Solutions for PDF demos. // Copyright (c) MESCIUS inc. All rights reserved. // using System; using System.IO; using System.Drawing; using GrapeCity.Documents.Pdf; using GrapeCity.Documents.Text; using GrapeCity.Documents.Common; using GrapeCity.Documents.Drawing; namespace DsPdfWeb.Demos.Basics { // Shows how to change page size and orientation in DsPdf. public class PageSize { public int CreatePDF(Stream stream) { const float in2mm = 72f / 25.4f; var colorOrig = Color.Red; var colorNew = Color.Blue; var doc = new GcPdfDocument(); // The default page size is Letter (8 1/2" x 11") with portrait orientation: var page = doc.NewPage(); var sOrigPageInfo = $"Original page size: {page.Size} pts ({page.Size.Width / 72f}\" * {page.Size.Height / 72f}\"),\r\n" + $"paper kind: {page.PaperKind}, landscape: {page.Landscape}."; // Save original page bounds: var rOrig = page.Bounds; // Change page parameters: page.Landscape = true; page.PaperKind = PaperKind.A4; var sNewPageInfo = $"New page size: {page.Size} pts ({page.Size.Width / in2mm}mm * {page.Size.Height / in2mm}mm),\r\n" + $"paper kind: {page.PaperKind}, landscape: {page.Landscape}."; // New page bounds: var rNew = page.Bounds; // Draw original and new page bounds: page.Graphics.DrawRectangle(rOrig, colorOrig, 6); page.Graphics.DrawRectangle(rNew, colorNew, 6); // Draw original and new page infos: var tf = new TextFormat() { Font = StandardFonts.Times, FontSize = 14, ForeColor = colorOrig }; page.Graphics.DrawString(sOrigPageInfo, tf, new PointF(72, 72)); tf.ForeColor = colorNew; page.Graphics.DrawString(sNewPageInfo, tf, new PointF(72, 72 * 2)); // Done: doc.Save(stream); return doc.Pages.Count; } } }