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Save a file from the annotation manager in C#

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To PDF

If you need to add annotations to a document and export the result as PDF, use the AnnotationManager class with the SaveDocumentToPDF method.

SaveDocumentToPDF overloads:

  • SaveDocumentToPDF(string FilePath)
  • SaveDocumentToPDF(Stream Stream)

This method saves with GdPicture/XMP annotation support and returns a GdPictureStatus.

To flatten the annotations while saving the document, call the BurnAnnotationsToPage method before saving.

To add an annotation and save as PDF, use the following code:

using GdPicture14;
using GdPicture14.Annotations;
using System;
using System.Drawing;


using AnnotationManager annotationManager = new AnnotationManager();


GdPictureStatus status = annotationManager.InitFromFile(@"C:\temp\source.pdf");
if (status != GdPictureStatus.OK)
{
    Console.WriteLine($"InitFromFile failed: {status}");
    return;
}


if (annotationManager.PageCount == 0)
{
    Console.WriteLine("Document contains no pages.");
    return;
}


status = annotationManager.SelectPage(1);
if (status != GdPictureStatus.OK)
{
    Console.WriteLine($"SelectPage failed: {status}");
    return;
}


AnnotationRubberStamp stamp = annotationManager.AddRubberStampAnnot(
    Color.Red,
    0.5f,
    0.5f,
    2,
    1,
    "APPROVED");


if (stamp == null)
{
    Console.WriteLine("AddRubberStampAnnot failed.");
    return;
}


stamp.Rotation = 20;


status = annotationManager.SaveAnnotationsToPage();
if (status != GdPictureStatus.OK)
{
    Console.WriteLine($"SaveAnnotationsToPage failed: {status}");
    return;
}


status = annotationManager.BurnAnnotationsToPage(false);
if (status != GdPictureStatus.OK)
{
    Console.WriteLine($"BurnAnnotationsToPage failed: {status}");
    return;
}


status = annotationManager.SaveDocumentToPDF(@"C:\temp\output.pdf");
if (status != GdPictureStatus.OK)
{
    Console.WriteLine($"SaveDocumentToPDF failed: {status}");
}