C# PDF Annotation Library
How to open, display, add, delete, Adobe PDF file attachment using c# in .net web, windows, wpf application
Sample Codes for C#.NET Users to attach files on PDF in C#.NET Class.
ASP.NET Annotate PDF function is based on C# PDF Annotate SDK.
In this C# tutorial, you will learn how to add, insert attachment file to PDF using C# in ASP.NET MVC Web, Windows applications.
- Quick to insert an existing attach file to PDF document with specified page position
- Read, extract an existing attach file information from PDF
C# add attach file annotation to pdf document
In this C# tutorial, you will learn how to add, insert attachment file to PDF using C# in ASP.NET MVC Web, Windows applications.
- Create a PDFDocument object from an existing PDF file, and get the first page of the PDF document
- Define a new attach file annotation object PDFAnnotFileAttach, and specify the page position and attached file path
- Add attach file annotation to the PDF page
- Save the modified PDF document and output to a new PDF file
String inputFilePath = Program.RootPath + "\\" + "2.pdf";
String outputFilePath = Program.RootPath + "\\" + "Annot_7.pdf";
// open a PDF file
PDFDocument doc = new PDFDocument(inputFilePath);
// get the 1st page
PDFPage page = (PDFPage)doc.GetPage(0);
{
// create the annotation
PDFAnnotFileAttach annot = new PDFAnnotFileAttach();
annot.Position = new PointF(100F, 100F);
annot.FilePath = @"C:\AttachmentFile.txt";
// add annotation to the page
PDFAnnotHandler.AddAnnotation(page, annot);
}
// save to a new file
doc.Save(outputFilePath);
C# read attach file annotation from pdf document
String inputFilePath = Program.RootPath + "\\" + "Annot_7.pdf";
PDFDocument doc = new PDFDocument(inputFilePath);
List<IPDFAnnot> annots = PDFAnnotHandler.GetAllAnnotations(doc);
foreach (IPDFAnnot annot in annots)
{
if (annot is PDFAnnotFileAttach)
{
PDFAnnotFileAttach obj = (PDFAnnotFileAttach)annot;
Console.WriteLine("Color: " + obj.Color.ToString());
}
}
C# delete all annotations from pdf document
String inputFilePath = Program.RootPath + "\\" + "1_Annots.pdf";
PDFDocument doc = new PDFDocument(inputFilePath);
// get all annotations in the 1st page
PDFPage page = (PDFPage)doc.GetPage(0);
List<IPDFAnnot> annots = PDFAnnotHandler.GetAllAnnotations(page);
// remove all annotations in the 1st page
PDFAnnotHandler.DeleteAnnotation(doc, annots);
