How to remove Header/Footer in Pdf

Hi,
I am trying to remove the header and footer from a PDF. I am using ParagraphAbsorber to read the file. Is there an attribute that can be used to detect the header and footer?

Or does there any suggestion to remove header/footer?

Sample-5-7.pdf (905.8 KB)

@Rachel_Lee
Since the document you attached has header and footer marked up, I suggest you try the following code:

var pdfDocument = new Document(dataDir + "Sample-5-7.pdf");

foreach (Page page in pdfDocument.Pages)
{
    var deletedArtifacts = new List<Artifact>();

    foreach (Artifact artifact in page.Artifacts)
    {
        if (artifact.Type == Artifact.ArtifactType.Pagination)
            switch (artifact.Subtype)
            {
                case Artifact.ArtifactSubtype.Header:
                case Artifact.ArtifactSubtype.Footer:                            
                    deletedArtifacts.Add(artifact);
                    break;
            }
    }

    foreach (Artifact artifact in deletedArtifacts)
        page.Artifacts.Delete(artifact);
}

pdfDocument.Save(dataDir + "Sample-5-7_out.pdf");