Load an image for conversion from a stream in C#
Image
To load an image for conversion from a stream, use the LoadFromStream method from the GdPictureDocumentConverter class.
LoadFromStream accepts:
Stream— The input stream containing image data.DocumentFormat(optional) — A member of theDocumentFormatenumeration.
For example, DocumentFormat can be:
- JPEG —
DocumentFormat.DocumentFormatJPEG - PNG —
DocumentFormat.DocumentFormatPNG - TIFF —
DocumentFormat.DocumentFormatTIFF - JPEG 2000 —
DocumentFormat.DocumentFormatJP2
LoadFromStream returns a GdPictureStatus, which should always be checked before conversion.
To load and convert an image from a stream, use the following code:
using GdPicture14;using System;using System.IO;
// Create a stream object from an image file.using Stream streamFile = new FileStream(@"C:\temp\source.jpeg", FileMode.Open, FileAccess.Read);using GdPictureDocumentConverter converter = new GdPictureDocumentConverter();
GdPictureStatus status = converter.LoadFromStream(streamFile, DocumentFormat.DocumentFormatJPEG);if (status != GdPictureStatus.OK){ Console.WriteLine($"LoadFromStream failed: {status}"); return;}
status = converter.SaveAsPDF(@"C:\temp\output.pdf");if (status != GdPictureStatus.OK){ Console.WriteLine($"SaveAsPDF failed: {status}");}Imports GdPicture14Imports System.IO
Using streamFile As Stream = New FileStream("C:\temp\source.jpeg", FileMode.Open, FileAccess.Read), converter As New GdPictureDocumentConverter()
Dim status As GdPictureStatus = converter.LoadFromStream(streamFile, DocumentFormat.DocumentFormatJPEG) If status <> GdPictureStatus.OK Then Console.WriteLine($"LoadFromStream failed: {status}") Return End If
status = converter.SaveAsPDF("C:\temp\output.pdf") If status <> GdPictureStatus.OK Then Console.WriteLine($"SaveAsPDF failed: {status}") End IfEnd Using