Load document from URL

String url = "https://github.com/groupdocs-merger/GroupDocs.Merger-for-Java/blob/master/Examples/Resources/SampleFiles/Pdf/sample.pdf?raw=true";
try {
    InputStream stream = new java.net.URL(url).openStream();

    LoadOptions loadOptions = new LoadOptions(FileType.PDF);
    Merger merger = new Merger(stream, loadOptions);
    System.out.print("Document loaded from URL successfully.");
} catch ( Exception e){
    throw new GroupDocsMergerException(e.getMessage());
}