CODEWITHSUNDEEP
itext
D T
D T

Reputation: 3746

How change PDFVerion by iTextSharp 5.5.9 lib?

I using iTextSharp version 5.5.9

My PDF file is version 1.7,

I try using Writer.SetPdfVersion or Writer.PdfVersion to set PDF Version is 1.6

But result output still is version 1.7

My code bellow:

 public void SetPDFVer(string parm_strFile,string parm_strOutputFile )
        {
            PdfReader reader = new PdfReader(parm_strFile);         
            using (FileStream fs = new FileStream(parm_strOutputFile, FileMode.Create, FileAccess.Write, FileShare.None))
            {
                using (PdfStamper stamper = new PdfStamper(reader, fs))
                {               
                    stamper.Writer.SetPdfVersion(PdfWriter.PDF_VERSION_1_6);
                   // stamper.Writer.PdfVersion = PdfWriter.VERSION_1_6;

                }
            }
        }

How can change version PDF from 1.7 to 1.6?

Thank you.

Upvotes: 0

Views: 68

Answers (1)

mkl
mkl

Reputation: 95918

For a PdfStamper you cannot decrease the version using

stamper.Writer.SetPdfVersion

This allows only increasing it.

If you need to decrease it, this can only be done with a different PdfStamper constructor: 

new PdfStamper(reader, fs, PdfWriter.VERSION_1_6)

Upvotes: 1

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