Get annotation.hashMap values using itextsharp in C#

hema latha

7y1.9kLearn iOS Programming

How to get "annotation.hashMap keys and Values" from

Dim annotation As PdfDictionary = CType(pdfReader.GetPdfObject(annot), PdfDictionary)

using itextsharp in vb.net ?

4 Replies

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Laxmidhar Sahoo7y ago
Accepted answer
Try to understand from c# and use in vb.net
void SplitePDF(string filepath)
    {
        iTextSharp.text.pdf.PdfReader reader = null;
        int currentPage = 1;
        int pageCount = 0;
        //string filepath_New = filepath + "\\PDFDestination\\";

        System.Text.UTF8Encoding encoding = new System.Text.UTF8Encoding();
        //byte[] arrayofPassword = encoding.GetBytes(ExistingFilePassword);
        reader = new iTextSharp.text.pdf.PdfReader(filepath);
        reader.RemoveUnusedObjects();
        pageCount = reader.NumberOfPages;
        string ext = System.IO.Path.GetExtension(filepath);
        for (int i = 1; i <= pageCount; i++)
        {
            iTextSharp.text.pdf.PdfReader reader1 = new iTextSharp.text.pdf.PdfReader(filepath);
            string outfile = filepath.Replace((System.IO.Path.GetFileName(filepath)), (System.IO.Path.GetFileName(filepath).Replace(".pdf", "") + "_" + i.ToString()) + ext);
            reader1.RemoveUnusedObjects();
            iTextSharp.text.Document doc = new iTextSharp.text.Document(reader.GetPageSizeWithRotation(currentPage));
            iTextSharp.text.pdf.PdfCopy pdfCpy = new iTextSharp.text.pdf.PdfCopy(doc, new System.IO.FileStream(outfile, System.IO.FileMode.Create));
            doc.Open();
            for (int j = 1; j <= 1; j++)
            {
                iTextSharp.text.pdf.PdfImportedPage page = pdfCpy.GetImportedPage(reader1, currentPage);
                pdfCpy.SetFullCompression();
                pdfCpy.AddPage(page);
                currentPage += 1;
            }
            doc.Close();
            pdfCpy.Close();
            reader1.Close();
            reader.Close();

        }
    }
hema latha7y ago
How to delete only rectangle area text from PDF using ITEXTSHARP in vb.net ?
hema latha7y ago
How to save pdf file as jpg image in vb.net using itextsharp? Please Suggests if any ideas.
Laxmidhar Sahoo7y ago
https://csharp.hotexamples.com/examples/iTextSharp.text.pdf/PdfWriter/CreateAnnotation/php-pdfwriter-createannotation-method-examples.html

there are so many examples in the link one of them is
virtual public PdfAnnotation CreateAnnotation(PdfWriter writer) {
     PdfAnnotation annotation = writer.CreateAnnotation(new Rectangle(llx, lly, urx, ury), null);
     if (newPage != 0) {
         PdfIndirectReference refi = writer.GetPageReference(newPage);
         destination.Set(0, refi);
     }
     if (destination != null) annotation.Put(PdfName.DEST, destination);
     foreach (PdfName key in parameters.Keys)
         annotation.hashMap[key] = parameters[key];
     return annotation;
}