> For the complete documentation index, see [llms.txt](https://docs.apryse.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.apryse.com/uwp/get-started/samples/bookmarktest.md). # Bookmarks Sample C# code to use Apryse SDK for programmatically reading and editing existing outline items, and for creating new PDF bookmarks using the high-level API. Sample C# code to use Apryse SDK for programmatically reading and editing existing outline items, and for creating new PDF bookmarks using the high-level API. Learn more about our [UWP SDK](/core/get-started/frameworks/dotnet.md) and [PDF Editing & Manipulation Library](/core/page-manipulation/manipulation.md). {% tabs %} {% tab title="C#" %} {% code lineNumbers="true" %} ```csharp // // Copyright (c) 2001-2020 by PDFTron Systems Inc. All Rights Reserved. // using System; using System.IO; using System.Threading.Tasks; using Windows.Foundation; using pdftron.PDF; using pdftron.SDF; using PDFNetUniversalSamples.ViewModels; namespace PDFNetSamples { //----------------------------------------------------------------------------------------- // The sample code illustrates how to read, write, and edit existing outline items // and create new bookmarks using both the high-level and the SDF/Cos API. //----------------------------------------------------------------------------------------- public sealed class BookmarkTest : Sample { public BookmarkTest() : base("Bookmark", "The sample code illustrates how to read and edit existing outline items and create new bookmarks using the high-level API.") { } public override IAsyncAction RunAsync() { return Task.Run(new System.Action(async () => { WriteLine("--------------------------------"); WriteLine("Starting Bookmark Test..."); WriteLine("--------------------------------\n"); try { String input_file_path = Path.Combine(InputPath, "numbered.pdf"); WriteLine("Opening input file " + input_file_path); PDFDoc doc = new PDFDoc(input_file_path); doc.InitSecurityHandler(); // Lets first create the root bookmark items. Bookmark red = Bookmark.Create(doc, "Red"); Bookmark green = Bookmark.Create(doc, "Green"); Bookmark blue = Bookmark.Create(doc, "Blue"); doc.AddRootBookmark(red); doc.AddRootBookmark(green); doc.AddRootBookmark(blue); // You can also add new root bookmarks using Bookmark.AddNext("...") blue.AddNext("foo"); blue.AddNext("bar"); // We can now associate new bookmarks with page destinations: // The following example creates an 'explicit' destination (see // section '8.2.1 Destinations' in PDF Reference for more details) Destination red_dest = Destination.CreateFit(doc.GetPage(1)); red.SetAction(pdftron.PDF.Action.CreateGoto(red_dest)); // Create an explicit destination to the first green page in the document green.SetAction(pdftron.PDF.Action.CreateGoto( Destination.CreateFit(doc.GetPage(10)))); // The following example creates a 'named' destination (see // section '8.2.1 Destinations' in PDF Reference for more details) // Named destinations have certain advantages over explicit destinations. String key = "blue1"; pdftron.PDF.Action blue_action = pdftron.PDF.Action.CreateGoto(key, Destination.CreateFit(doc.GetPage(19))); blue.SetAction(blue_action); // We can now add children Bookmarks Bookmark sub_red1 = red.AddChild("Red - Page 1"); sub_red1.SetAction(pdftron.PDF.Action.CreateGoto(Destination.CreateFit(doc.GetPage(1)))); Bookmark sub_red2 = red.AddChild("Red - Page 2"); sub_red2.SetAction(pdftron.PDF.Action.CreateGoto(Destination.CreateFit(doc.GetPage(2)))); Bookmark sub_red3 = red.AddChild("Red - Page 3"); sub_red3.SetAction(pdftron.PDF.Action.CreateGoto(Destination.CreateFit(doc.GetPage(3)))); Bookmark sub_red4 = sub_red3.AddChild("Red - Page 4"); sub_red4.SetAction(pdftron.PDF.Action.CreateGoto(Destination.CreateFit(doc.GetPage(4)))); Bookmark sub_red5 = sub_red3.AddChild("Red - Page 5"); sub_red5.SetAction(pdftron.PDF.Action.CreateGoto(Destination.CreateFit(doc.GetPage(5)))); Bookmark sub_red6 = sub_red3.AddChild("Red - Page 6"); sub_red6.SetAction(pdftron.PDF.Action.CreateGoto(Destination.CreateFit(doc.GetPage(6)))); // Example of how to find and delete a bookmark by title text. Bookmark foo = doc.GetFirstBookmark().Find("foo"); if (foo.IsValid()) { foo.Delete(); } Bookmark bar = doc.GetFirstBookmark().Find("bar"); if (bar.IsValid()) { bar.Delete(); } // Adding color to Bookmarks. Color and other formatting can help readers // get around more easily in large PDF documents. red.SetColor(1, 0, 0); green.SetColor(0, 1, 0); green.SetFlags(2); // set bold font blue.SetColor(0, 0, 1); blue.SetFlags(3); // set bold and italic String output_file_path = Path.Combine(OutputPath, "bookmark.pdf"); await doc.SaveAsync(output_file_path, 0); doc.Destroy(); WriteLine("Done. Result saved in " + output_file_path); await AddFileToOutputList(output_file_path).ConfigureAwait(false); } catch (Exception e) { WriteLine(GetExceptionMessage(e)); } // The following example illustrates how to traverse the outline tree using // Bookmark navigation methods: Bookmark.GetNext(), Bookmark.GetPrev(), // Bookmark.GetFirstChild () and Bookmark.GetLastChild (). try { String input_file_path = Path.Combine(OutputPath, "bookmark.pdf"); // Open the document that was saved in the previous code sample PDFDoc doc = new PDFDoc(input_file_path); doc.InitSecurityHandler(); Bookmark root = doc.GetFirstBookmark(); PrintOutlineTree(root); doc.Destroy(); } catch (Exception e) { WriteLine(GetExceptionMessage(e)); } // The following example illustrates how to create a Bookmark to a page // in a remote document. A remote go-to action is similar to an ordinary // go-to action, but jumps to a destination in another PDF file instead // of the current file. See Section 8.5.3 'Remote Go-To Actions' in PDF // Reference Manual for details. try { String input_file_path = Path.Combine(OutputPath, "bookmark.pdf"); PDFDoc doc = new PDFDoc(input_file_path); doc.InitSecurityHandler(); // Create file specification (the file referred to by the remote bookmark) Obj file_spec = doc.CreateIndirectDict(); file_spec.PutName("Type", "Filespec"); file_spec.PutString("F", "bookmark.pdf"); FileSpec spec = new FileSpec(file_spec); pdftron.PDF.Action goto_remote = pdftron.PDF.Action.CreateGotoRemote(spec, 5, true); Bookmark remoteBookmark1 = Bookmark.Create(doc, "REMOTE BOOKMARK 1"); remoteBookmark1.SetAction(goto_remote); doc.AddRootBookmark(remoteBookmark1); // Create another remote bookmark, but this time using the low-level SDF/Cos API. Bookmark remoteBookmark2 = Bookmark.Create(doc, "REMOTE BOOKMARK 2"); doc.AddRootBookmark(remoteBookmark2); Obj gotoR = remoteBookmark2.GetSDFObj().PutDict("A"); { // Create the 'Action' dictionary. gotoR.PutName("S", "GoToR"); // Set action type gotoR.PutBool("NewWindow", true); // Set the file specification gotoR.Put("F", file_spec); // Set the destination. Obj dest = gotoR.PutArray("D"); dest.PushBackNumber(9); // jump to the first page. Note that Acrobat indexes pages from 0. dest.PushBackName("Fit"); // Fit the page } String output_file_path = Path.Combine(OutputPath, "bookmark_remote.pdf"); await doc.SaveAsync(output_file_path, SDFDocSaveOptions.e_linearized); doc.Destroy(); WriteLine("Done. Result saved in " + output_file_path); await AddFileToOutputList(output_file_path).ConfigureAwait(false); } catch (Exception e) { WriteLine(GetExceptionMessage(e)); } WriteLine("\n--------------------------------"); WriteLine("Done Bookmark Test."); WriteLine("--------------------------------\n"); })).AsAsyncAction(); } void PrintIndent(Bookmark item) { int indent = item.GetIndent() - 1; String indentStr = String.Empty; for (int i = 0; i < indent; ++i) indentStr += (" "); Write(indentStr); } // Prints out the outline tree to the standard output void PrintOutlineTree(Bookmark item) { for (; item.IsValid(); item = item.GetNext()) { PrintIndent(item); WriteLine(String.Format("{0:s}{1:s} ACTION -> ", (item.IsOpen() ? "- " : "+ "), item.GetTitle())); // Print Action pdftron.PDF.Action action = item.GetAction(); if (action.IsValid()) { if (action.GetType() == pdftron.PDF.ActionType.e_GoTo) { Destination dest = action.GetDest(); if (dest.IsValid()) { pdftron.PDF.Page page = dest.GetPage(); WriteLine(String.Format("Goto Page #{0:d}", page.GetIndex())); } } else { WriteLine("Not a 'GoTo' action"); } } else { WriteLine("NULL"); } if (item.HasChildren()) // Recursively print children sub-trees { PrintOutlineTree(item.GetFirstChild()); } } } } } ``` {% endcode %} {% endtab %} {% endtabs %} --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. 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