Marked Content
| Minimum Version | Q2 2025 |
|---|---|
| Related Feature | Accessibility Support |
Marked-content operators identify a portion of a PDF content stream as a marked-content element of interest to a particular application or PDF plugin extension. A graphics application, for example, can use marked content to identify a set of related objects as a group to be processed as a single unit. A text-processing application can use it to maintain a connection between a footnote marker in the body of a document and the corresponding footnote text at the bottom of the page. The marked-content operators store internally a tag operand that indicates the role or significance of the marked-content element to the processing application.
RadPdfProcessing offers the MarkedContent class, which represents marked content in a fixed document.
You can add marked content to a RadFixedDocument in the following ways:
Adding Marked Content Using the PDF Model
RadFixedDocument fixedDocument = new RadFixedDocument();
RadFixedPage page = fixedDocument.Pages.AddPage();
MarkedContent markedContent = page.Content.AddMarkedContent();
TextFragment markedContent1 = markedContent.Content.AddTextFragment("markedContent1");
markedContent1.Position.Translate(50, 100);
MarkedContent nestedMarkedContent = markedContent.Content.AddMarkedContent();
TextFragment nestedMarkedContentText = nestedMarkedContent.Content.AddTextFragment("nestedMarkedContent");
nestedMarkedContentText.Position.Translate(50, 150);
FormSource formSource = new FormSource();
formSource.Size = new Size(200, 200);
Form form = nestedMarkedContent.Content.AddForm(formSource);
//Fill the form
TextFragment markedContent2 = markedContent.Content.AddTextFragment("markedContent2");
markedContent2.Position.Translate(50, 200);Adding Marked Content Using the FixedContentEditor
RadFixedDocument fixedDocument = new RadFixedDocument();
RadFixedPage page = fixedDocument.Pages.AddPage();
FixedContentEditor editor = new FixedContentEditor(page);
MarkedContent markedContent1 = new MarkedContent();
markedContent1.Content.AddTextFragment("marked content text 1");
editor.Position.Translate(50, 50);
editor.Draw(markedContent1);
MarkedContent markedContent2 = new MarkedContent();
markedContent2.Content.AddTextFragment("marked content text 2");
editor.Position.Translate(0, 200);
editor.Draw(markedContent2);Adding Marked Content Using the RadFixedDocumentEditor
RadFixedDocument fixedDocument = new RadFixedDocument();
RadFixedPage page = fixedDocument.Pages.AddPage();
using (RadFixedDocumentEditor editor = new RadFixedDocumentEditor(fixedDocument))
{
MarkedContent markedContent = new MarkedContent();
TextFragment markedContent1 = markedContent.Content.AddTextFragment("markedContent1");
markedContent1.Position.Translate(50, 100);
editor.InsertMarkedContent(markedContent);
}Adding Marked Content Using the Block
RadFixedDocument fixedDocument = new RadFixedDocument();
RadFixedPage page = fixedDocument.Pages.AddPage();
using (RadFixedDocumentEditor editor = new RadFixedDocumentEditor(fixedDocument))
{
Block block = new Block();
block.InsertMarkedContentStart();
block.InsertText("first");
block.InsertMarkedContentStart();
block.InsertText("second");
block.InsertMarkedContentEnd();
block.InsertMarkedContentEnd();
editor.InsertBlock(block);
}