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#1 Posted : Monday, January 7, 2019 7:56:24 AM(UTC)
Christopher

Groups: Registered, Tech Support, Administrators
Posts: 89

Was thanked: 4 time(s) in 4 post(s)

The Leadtools SDK allows for a document's metadata information to be accessed by using a few simple commands.

Below are a few relevant links to our LEADTOOLS Online Documentation that will elaborate further on the example below.

https://www.leadtools.co...orking-with-markers.html
https://www.leadtools.co...s-readmetadataitems.html
https://www.leadtools.co...astermarkermetadata.html
https://www.leadtools.co...l/rastertagmetadata.html
https://www.leadtools.co...stercommentmetadata.html

The code below shows how to check to see if the file provided supports housing metadata and outputs the contained metadata if it does contain any.

Code:

string srcFile = @"TODO: Modify this file path";

using (var rasterCodecs = new RasterCodecs())
using (var fileInfo = rasterCodecs.GetInformation(srcFile, false))
{
   Console.WriteLine("Format: {0}", fileInfo.Format);
   
   // Check if metadata is supported for the specified file format
   bool isMetadataItemsSupported = RasterCodecs.MetadataItemsSupported(fileInfo.Format);
   Console.WriteLine("isMetadataItemsSupported: {0}", isMetadataItemsSupported);
   
   if (isMetadataItemsSupported)
   {
      // Read metadata items
      IDictionary<string, string> metadata = null;
      try
      {
         metadata = rasterCodecs.ReadMetadataItems(srcFile, 1);
      }
      catch (Exception ex)
      {
         Console.WriteLine("Unable to read metadata: {0}", ex.message);
      }
      
      if (metadata != null)
      {
         Console.WriteLine("Items count: {0}", metadata.Count);
         foreach (var item in metadata)
            // Key ex: RasterCodecs.FileMetadataKeyAuthor
            Console.WriteLine("{0}: {1}", item.Key, item.Value);
      }
   }
}
Console.ReadLine();


File Attachment(s):
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Chris Thompson
Developer Support Engineer
LEAD Technologies, Inc.

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