Reading PNG metadata properties The GroupDocs.Metadata API supports extracting format-specific information from PNG images.
The following are the steps to read the native PNG metadata.
Load a PNG image Get the root metadata package Extract the native metadata package using PngRootPackage.PngPackage Read the PNG metadata properties AdvancedUsage.ManagingMetadataForSpecificFormats.Image.Png.PngReadTextChunks
using (Metadata metadata = new Metadata(Constants.InputPng)) { var root = metadata.GetRootPackage(); foreach (var chunk in root.PngPackage.TextChunks) { Console.WriteLine(chunk.Keyword); Console.WriteLine(chunk.Text); var compressedChunk = chunk as PngCompressedTextChunk; if (compressedChunk !...Editor Product Solution GroupDocs...
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Follow this guide and learn how to merge PDF files, combine several PDFs into one using GroupDocs.Merger for Java API and couple lines of code...Editor Product Solution GroupDocs...
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Not all metadata properties extracted from a file are marked with tags. Some file formats and metadata standards allow adding fully custom properties that can’t be properly tagged by the library since their purpose is not clearly defined in the appropriate format/standard specification. In such cases, you can use the name of the property to locate and remove it. The following example demonstrates some advanced usage scenarios of the GroupDocs.Metadata search engine allowing to remove metadata properties....Editor Product Solution GroupDocs...
Stop words are frequently used words that do not carry a semantic meaning and can be removed from an index to reduce its size.
You can enable or disable the use of stop words by calling the setUseStopWords method of the IndexSettings class. The default value is true, meaning that stop words are filtered during indexing and not added to the index.
A list of stop words to use during indexing can be specified in the stop word dictionary....Editor Product Solution GroupDocs...