ImageGear for .NET
UpdateDocumentMetadata Method
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ImageGear21.Core Assembly > ImageGear.Formats Namespace > ImGearFileFormats Class : UpdateDocumentMetadata Method




sourceStream
Data stream containing a source image.
destinationStream
Data stream to write the updated image to.
metadata
Document metadata tree to be saved to the new image.

Glossary Item Box

Updates document metadata without changing pixel data.

Syntax

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

Parameters

sourceStream
Data stream containing a source image.
destinationStream
Data stream to write the updated image to.
metadata
Document metadata tree to be saved to the new image.

Exceptions

ExceptionDescription
System.ArgumentNullException Thrown if the specified stream is null or metadata parameter is null.
ImageGear.Core.ImGearException

Thrown with ImGearErrorCodes.PAGE_NOT_PRESENT error code if the source stream represents DICOM vector waveform data.

Thrown with ImGearErrorCodes.CANT_SAVE_FORMAT error code if the metadata cannot be updated due to invalid data in the source stream.

Remarks

This method replaces the metadata associated with a document loaded from the source image with the provided metadata and saves the updated image to the destination stream. This method does not replace the metadata assotiated with individual pages. This method does not change the actual pixel data. The structure of the provided metadata tree should correspond to the metadata tree from the source image. This method does not save any metadata tags provided in the metadata tree that are not supported by the source image format. See ImageGear.Core.ImGearMetadataNode for more details about the ImageGear metadata.

This method is only supported for PDF, PS and DICOM file formats.

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