// // 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 System.Collections.Generic; using System.Linq; using GrapeCity.Documents.Pdf; using GrapeCity.Documents.Text; namespace DsPdfWeb.Demos.Basics { // This sample lists all fonts found in a loaded PDF, // prints some info for each font, and indicates whether a Font object // can be created from the font in the PDF. public class ListFonts { public int CreatePDF(Stream stream) { const string sourcePDF = "CompleteJavaScriptBook.pdf"; var doc = new GcPdfDocument(); var page = doc.NewPage(); var rc = Common.Util.AddNote( "This sample loads an arbitrary PDF into a temporary GcPdfDocument, " + "and lists all fonts found in that document, with some of their properties. " + "It also tries to create a Font object from each of those PDF fonts, " + "and reports whether this operation succeeded.", page); // Text layout to render the text: var tab = 24; var tl = page.Graphics.CreateTextLayout(); tl.DefaultFormat.Font = StandardFonts.Times; tl.DefaultFormat.FontSize = 12; tl.MaxWidth = doc.PageSize.Width; tl.MaxHeight = doc.PageSize.Height; tl.MarginAll = rc.Left; tl.MarginTop = rc.Bottom + 36; tl.TabStops = [ new (tab) ]; tl.FirstLineIndent = -tab; tl.MarginRight = 144; // Text split options for widow/orphan control: var to = new TextSplitOptions(tl) { KeepParagraphLinesTogether = true, MinLinesInFirstParagraph = 2, MinLinesInLastParagraph = 2, RestMarginTop = rc.Left, }; // Open an arbitrary PDF, load it into a temp document and get all fonts: using var fs = File.OpenRead(Path.Combine("Resources", "PDFs", sourcePDF)); var doc1 = new GcPdfDocument(); doc1.Load(fs); var fonts = doc1.GetFonts(); tl.AppendLine($"Total of {fonts.Count} fonts found in {sourcePDF}:"); tl.AppendLine(); int i = 0; foreach (var font in fonts) { var nativeFont = font.CreateNativeFont(); tl.Append($"{i}:\tBaseFont: {font.BaseFont}; IsEmbedded: {font.IsEmbedded}."); tl.AppendParagraphBreak(); if (nativeFont != null) tl.AppendLine($"\tCreateNativeFont succeeded, family: {nativeFont.FontFamilyName}; bold: {nativeFont.FontBold}; italic: {nativeFont.FontItalic}."); else tl.AppendLine("\tCreateNativeFont failed"); tl.AppendLine(); ++i; } tl.PerformLayout(true); while (true) { // 'rest' will accept the text that did not fit: var splitResult = tl.Split(to, out TextLayout rest); doc.Pages.Last.Graphics.DrawTextLayout(tl, PointF.Empty); if (splitResult != SplitResult.Split) break; tl = rest; doc.NewPage(); } // Done: doc.Save(stream); return doc.Pages.Count; } } }