//
// 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;
namespace DsPdfWeb.Demos
{
// This sample demonstrates annotation editing features of GcPdfViewer with support API
// provided by the server running DsPdf. It loads an example financial report with some
// sample annotations added. You can use the annotation editing features of GcPdfViewer
// to inspect or edit existing annotations, or add new ones.
// This and other samples in this section demonstrate the features of GcPdfViewer
// (a JavaScript PDF viewer control included with DsPdf), mainly the ability
// to change PDF files (add or edit annotations and AcroForm fields, rotate pages etc.)
// when the JS viewer on the client is supported by DsPdf running on the server.
//
// To enable the editing features of the viewer, its supportApi property must be set
// to a URL on the server that implements all or some of the edit supporting APIs
// that are known to/expected by the viewer. This DsPdf demo site provides those APIs,
// which makes it possible to demonstrate the editing when you open the PDF viewer
// in this sample. When you download this sample, in addition to the .NET Core
// console app project that generates the sample PDF, an ASP.NET Core project is
// also included in the download zip (located in the GcPdfViewerWeb sub-folder of the
// downloaded zip), which also provides the necessary APIs. In particular, it includes
// a project that implements the APIs and provides them via a special controller.
// It is actually the same controller that is used by this DsPdf demo site, and which
// can be used in any ASP.NET Core site to enable the viewer editing features.
//
// Look at the following files in the sample download zip for more info:
// - GcPdfViewerWeb\SupportApiDemo: the sample ASP.NET Core web site.
// - GcPdfViewerWeb\SupportApiDemo.sln: solution to build/run the sample web site.
// - GcPdfViewerWeb\SupportApi: support API implementation (can be used in any site).
// - GcPdfViewerWeb\SupportApi\Controllers\GcPdfViewerController.cs: support API controller.
//
// Please note that this and other samples in this section are only available in C# at this time.
//
public class ViewerEditAnnotations
{
public void CreatePDF(Stream stream)
{
var doc = new GcPdfDocument();
using var fs = File.OpenRead(Path.Combine("Resources", "PDFs", "AcmeFinancialReport-annotated.pdf"));
doc.Load(fs);
doc.Save(stream);
}
// Used by SupportApiDemo to initialize GcPdfViewer.
public static GcPdfViewerSupportApiDemo.Models.PdfViewerOptions PdfViewerOptions
{
get => new GcPdfViewerSupportApiDemo.Models.PdfViewerOptions(
GcPdfViewerSupportApiDemo.Models.PdfViewerOptions.Options.AnnotationEditorPanel |
GcPdfViewerSupportApiDemo.Models.PdfViewerOptions.Options.ActivateAnnotationEditor,
viewerTools: new string[] { "save", "$navigation", "$split", "text-selection", "pan", "$zoom", "$fullscreen", "download", "print", "rotate", "view-mode", "hide-annotations", "doc-properties", "about" });
}
}
}