This article shows how To add metadata properties which is the most sophisticated feature of the GroupDocs.Metadata Node.js via Java search engine...metadata of PDF, DOC, DOCX, PPT, PPTX, XLS, XLSX, emails, images...
This article shows how ToTo extract data from Microsoft Office Excel spreadsheets....data from PDF, DOC, DOCX, PPT, PPTX, XLS, XLSX, Emails and more...
This article explains that the GroupDocs.Metadata represents any loaded file as a tree consisting of metadata properties and nested metadata packages. You can easily iterate through the metadata tree...metadata of PDF, DOC, DOCX, PPT, PPTX, XLS, XLSX, emails, images...
Detecting the GIF version The following sample of code will help you To detect the version of a loaded GIF image and extract some additional file format information.
Load a GIF image Extract the root metadata package Use the getGifImageType method To obtain file format information advanced_usage.managing_metadata_for_specific_formats.image.gif.GifReadFileFormatProperties
try (Metadata metadata = new Metadata(Constants.InputGif)) { GifRootPackage root = metadata.getRootPackageGeneric(); System.out.println(root.getGifImageType().getFileFormat()); System.out.println(root.getGifImageType().getVersion()); System.out.println(root.getGifImageType().getByteOrder()); System.out.println(root.getGifImageType().getMimeType()); System.out.println(root.getGifImageType().getExtension()); System.out.println(root.getGifImageType().getWidth()); System.out.println(root.getGifImageType().getHeight()); } Working with XMP Metadata GroupDocs....metadata of PDF, DOC, DOCX, PPT, PPTX, XLS, XLSX, emails, images...
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 !...metadata of PDF, DOC, DOCX, PPT, PPTX, XLS, XLSX, emails, images...
The SetProperties method is used To update or add metadata. You can easily add metadata To phoTos, Pdfs or you can update or add data To mp3 files....metadata of PDF, DOC, DOCX, PPT, PPTX, XLS, XLSX, emails, images...
The Example in this article demonstrates that how To update metadata properties using a combination of criteria...metadata of PDF, DOC, DOCX, PPT, PPTX, XLS, XLSX, emails, images...