PdfDocument Constructor(Stream,PdfFormat)

In This Topic

Initializes a new instance of the PdfDocument class from the specified stream.

Syntax

Visual Basic
C#
Managed Extensions for C++
C++/CLI

'Declaration

Public Function New( _
   ByVal streamThe stream with PDF document.
 As System.IO.Stream, _
   ByVal formatFormat of new PDF document.
 As PdfFormat _
)

public PdfDocument(
   System.IO.Stream stream, 
   PdfFormat format
)

public: PdfDocument(
   System.IO.Stream* stream, 
   PdfFormat* format
)

public:
PdfDocument(
   System.IO.Stream^ stream, 
   PdfFormat^ format
)

Parameters

stream: The stream with PDF document.
format: Format of new PDF document.

Exceptions

Exception	Description
PdfException	Thrown if stream data is not correct.
System.ArgumentOutOfRangeException	Thrown if format is Pdf_A. Use ConvertDocument(PdfDocumentConformance) method to convert document to PDF/A.

Remarks

This constructor opens an existing PDF document from the stream with access mode of the stream if stream length is 0.
This constructor creates new PDF document in the stream if stream length is 0. Stream must have read-write access.

Example

Here is an example that shows how to create an empty PDF document version 1.4 in a stream:

VB.NET


Public Sub CreatePdfDocumentInStream(stream As System.IO.Stream)
    ' create new PDF document version 1.4 in the memory
    Using document As New Vintasoft.Imaging.Pdf.PdfDocument(stream, New Vintasoft.Imaging.Pdf.PdfFormat("1.4"))
        ' create an empty image
        Using image As New Vintasoft.Imaging.VintasoftImage(600, 800)
            ' add image to PDF document
            document.Pages.Add(image)
        End Using

        ' save document to a file
        document.SaveChanges()
    End Using
End Sub


public void CreatePdfDocumentInStream(System.IO.Stream stream)
{
    // create new PDF document version 1.4 in the memory
    using (Vintasoft.Imaging.Pdf.PdfDocument document = new Vintasoft.Imaging.Pdf.PdfDocument(
        stream, new Vintasoft.Imaging.Pdf.PdfFormat("1.4")))
    {
        // create an empty image
        using (Vintasoft.Imaging.VintasoftImage image = new Vintasoft.Imaging.VintasoftImage(600, 800))
        {
            // add image to PDF document
            document.Pages.Add(image);
        }

        // save document to a file
        document.SaveChanges();
    }
}

Requirements

Target Platforms: .NET9; .NET 8; .NET 7; .NET 6; .NET Framework 4.8, 4.7, 4.6, 4.5, 4.0, 3.5

Reference

PdfDocument Class
PdfDocument Members

PdfDocumentConverter
Overload List

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