2.15 Attach Data Files

The PdfFileWriter supports embedding data files in the PDF document. Full example of embedding file is given in the page 7 of OtherExample.cs. The user can save the files or display the files.

// create embedded media file
PdfEmbeddedFile EmbeddedFile = PdfEmbeddedFile.CreateEmbeddedFile(Document, "BookList.txt");
AnnotFileAttachment FileIcon = new AnnotFileAttachment(EmbeddedFile, FileAttachIcon.Paperclip);

// display text area to activate the file attachment
Double LineSpacing = ArialNormal.LineSpacing(12.0);
Double TextPosX = PosX + 0.5 * AreaWidth;
Double TextPosY = PosY + 0.5 * AreaHeight + LineSpacing;
Contents.DrawText(ArialNormal, 12.0, TextPosX, TextPosY, TextJustify.Center, "Right click on the paper clip");
TextPosY -= LineSpacing;
Double TextWidth = Contents.DrawText(ArialNormal, 12.0, TextPosX, TextPosY, TextJustify.Center, "to open or save the attached file");

// annotation
Double IconPosX = TextPosX + 0.5 * TextWidth + 0.1;
Double IconPosY = TextPosY;
PdfRectangle AnnotRect = new PdfRectangle(IconPosX, IconPosY, IconPosX + 0.15, IconPosY + 0.4);
Page.AddFileAttachment(AnnotRect, EmbeddedFile, FileAttachIcon.Paperclip);
TextPosY -= 2 * LineSpacing;
AnnotFileAttachment FileText = new AnnotFileAttachment(EmbeddedFile, FileAttachIcon.NoIcon);
Contents.DrawTextWithAnnotation(Page, ArialNormal, 12.0, TextPosX, TextPosY, TextJustify.Center,
  DrawStyle.Underline, Color.Red, "File attachment (right click)", FileText);