Detecting the version of a PDF document The following sample of code will help you to detect the PDF version a loaded document and extract some additional file format information.
Load a PDF document Extract the root metadata package Use the getPdfType method to obtain file format information advanced_usage.managing_metadata_for_specific_formats.document.pdf.PdfReadFileFormatProperties
try (Metadata metadata = new Metadata(Constants.InputPdf)) { PdfRootPackage root = metadata.getRootPackageGeneric(); System.out.println(root.getPdfType().getFileFormat()); System.out.println(root.getPdfType().getVersion()); System.out.println(root.getPdfType().getMimeType()); System.out.println(root.getPdfType().getExtension()); } Reading built-in metadata properties To access built-in metadata of a PDF document, please use the getDocumentProperties method defined in the DocumentRootPackage class....Classification Product Solution Purchase...
The OperationFinished event occurs when an index operation completes – indexing, updating, merging, or optimizing (segment merging)...Classification Product Solution Purchase...
This topic describes how to use the GroupDocs.Viewer .NET API (C#) to convert Visio diagrams to HTML, PDF, PNG, and JPEG formats....Classification Product Solution Purchase...
This article explains how to use custom caching implementation with GroupDocs.Viewer within your .NET applications....Classification Product Solution Purchase...
This article explains how to access IPTC metadata in a file of any supported format, GroupDocs.Metadata for Java provides the IIptc.getIptcPackage method....Classification Product Solution Purchase...
Learn this article and check how to load and convert Microsoft Excel and Open Document spreadsheets with advanced options using GroupDocs.Conversion for .NET API....Classification Product Solution Purchase...
Why To Migrate? Here are the key reasons to use the new API provided by GroupDocs.Metadata for Java starting from version 20.2:
The* Metadata* class is introduced as a single entry point to manage metadata in files of all supported formats. Extracting and updating metadata was unified for all supported formats. The product architecture was redesigned from scratch in order to simplify most common operations with metadata properties. Getting document information and preview generation procedures were simplified....Classification Product Solution Purchase...
This topic describes how to use the GroupDocs.Viewer Java API to convert CAD files (DWG, DGN, DXF) to HTML, PDF, PNG, and JPEG formats....Classification Product Solution Purchase...
Reading matroska format-specific properties The GroupDocs.Metadata API supports extracting format-specific information from MKV files.
The following are the steps to read native MKV metadata.
Load an MKV video Get the root metadata package Extract the native metadata package using the MatroskaRootPackage.getMatroskaPackage method Read the Matroska metadata properties on different levels of the format structure advanced_usage.managing_metadata_for_specific_formats.video.matroska.MatroskaReadNativeMetadataProperties
try (Metadata metadata = new Metadata(Constants.InputMkv)) { MatroskaRootPackage root = metadata.getRootPackageGeneric(); // Read the EBML header System....Classification Product Solution Purchase...