GroupDocsGists

// Read Dublin Core metadata using Java
try (Metadata metadata = new Metadata("path/ebook.epub")) {
    EpubRootPackage root = metadata.getRootPackageGeneric();

    System.out.println(root.getDublinCorePackage().getRights());
    System.out.println(root.getDublinCorePackage().getPublisher());
    System.out.println(root.getDublinCorePackage().getTitle());
    System.out.println(root.getDublinCorePackage().getCreator());
    System.out.println(root.getDublinCorePackage().getLanguage());
    System.out.println(root.getDublinCorePackage().getDate());

GroupDocsGists

// Read Dublin Core metadata using C#
using (Metadata metadata = new Metadata("path/ebook.epub"))
{
    var root = metadata.GetRootPackage<EpubRootPackage>();

    Console.WriteLine(root.DublinCorePackage.Rights);
    Console.WriteLine(root.DublinCorePackage.Publisher);
    Console.WriteLine(root.DublinCorePackage.Title);
    Console.WriteLine(root.DublinCorePackage.Creator);
    Console.WriteLine(root.DublinCorePackage.Language);

GroupDocsGists

// Edit PPT/PPTX presenatations in Java using GroupDocs presentation editing and automation API

// Load Presentation
PresentationLoadOptions loadOptions = new PresentationLoadOptions();
loadOptions.setPassword("P@$$w0Rd");

// Edit Presentation
Editor editor = new Editor(new FileInputStream("path/presentation.pptx"), loadOptions);
PresentationEditOptions editOptions = new PresentationEditOptions();
editOptions.setSlideNumber(0); //1st slide

GroupDocsGists

// Edit PPT/PPTX presenatations in C# using GroupDocs presentation editing and automation API
using (FileStream fs = File.OpenRead("path/presentation.pptx"))
{
    // Load Presentation
    Options.PresentationLoadOptions loadOptions = new PresentationLoadOptions();
    loadOptions.Password = "P@$$w0Rd";

    // Edit Presentation
    using (Editor editor = new Editor(delegate { return fs; }, delegate { return loadOptions; }))
    {

GroupDocsGists

// Apply Image Watermark to specific page(s) of Word file using Java
Watermarker watermarker = new Watermarker("path/document.docx");

ImageWatermark watermark = new ImageWatermark("path/watermark-logo.png");
watermark.setOpacity(0.7);
watermark.setHorizontalAlignment(HorizontalAlignment.Center);
watermark.setVerticalAlignment(VerticalAlignment.Center);

// Add watermark to the last page
WordProcessingContent content = watermarker.getContent(WordProcessingContent.class);

GroupDocsGists

// Add Watermark Image to specific page(s) of Word document using C#
using (Watermarker watermarker = new Watermarker("path/multipage-document.docx"))
{
    ImageWatermark watermark = new ImageWatermark("path/image.png")
    {
        Opacity = .5,
        HorizontalAlignment = HorizontalAlignment.Center,
        VerticalAlignment = VerticalAlignment.Center
    };

GroupDocsGists

/*
 * Update password of the protected spreadsheet files using Java
 */
LoadOptions loadOptions = new LoadOptions("mySECRETpassWORD");
UpdatePasswordOptions updateOptions = new UpdatePasswordOptions("TOPSECRET_pa22WORD");

Merger merger = new Merger("path/protected-spreadsheet.xlsx", loadOptions);
merger.updatePassword(updateOptions);
merger.save("path/pwd-changed-spreadsheet.xlsx");

GroupDocsGists

/*
 * Change password of protected Excel spreadsheets using C#
 */
string filePath = @"path/protected-spreadsheet.xlsx";

LoadOptions loadOptions = new LoadOptions("mySECRETpassWORD");
UpdatePasswordOptions updateOptions = new UpdatePasswordOptions("TOPSECRET_pa22WORD");

using (Merger merger = new Merger(filePath, loadOptions))
{

GroupDocsGists

// Merge Selective Pages of Word Documents using Java
Merger merger = new Merger("source_document.docx"))
{
    // Set the merging options
    JoinOptions joinOptions = new JoinOptions(2,3); // Specify the starting and ending page number
    
    // Merge the documents
    merger.join("document_to_merge.docx", joinOptions); // using joining settings
    merger.join("another_document_to_merge.docx", new JoinOptions(new int[] { 2, 4, 6 })); // Specifying page number(s)
    

GroupDocsGists

// Merge Selective Pages of Word Documents using C#
using (Merger merger = new Merger("source_document.docx"))
{
    // Set the merging options
    JoinOptions joinOptions = new JoinOptions(2,3); // Specify the starting and ending page number
    
    // Merge the documents
    merger.Join("document_to_merge.docx", joinOptions); // using joining settings
    merger.Join("another_document_to_merge.docx", new JoinOptions(new[] { 2, 4, 6 })); // Specifying page number(s)