Extract Links from the PDF File

Links are represented as annotations in a PDF file, so to extract links, extract all the LinkAnnotation objects.

  1. Create a Document object.
  2. Get the Page you want to extract links from.
  3. Use the AnnotationSelector class to extract all the LinkAnnotation objects from the specified page.
  4. Pass the AnnotationSelector object to the Page object’s Accept method.
  5. Get all the selected link annotations into an IList object using the AnnotationSelector object’s Selected property.

The following code snippet shows you how to extract links from a PDF file.

// For complete examples and data files, please go to https://github.com/aspose-pdf/Aspose.PDF-for-.NET
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_AsposePdf_LinksActions();
// Open document
Document document = new Document(dataDir+ "ExtractLinks.pdf");
// Extract actions
Page page = document.Pages[1];
AnnotationSelector selector = new AnnotationSelector(new LinkAnnotation(page, Aspose.Pdf.Rectangle.Trivial));
IList<Annotation> list = selector.Selected;
Annotation annotation = (Annotation)list[0];
dataDir = dataDir + "ExtractLinks_out.pdf";
// Save updated document