Thêm tệp đính kèm vào PDF trong Java SDK

    package com.aspose.asposecloudpdfusecases.attachments;

    import java.io.File;
    import java.nio.file.Path;
    import java.nio.file.StandardCopyOption;
    import com.aspose.asposecloudpdf.api.PdfApi;
    import com.aspose.asposecloudpdf.model.AttachmentInfo;
    import com.aspose.asposecloudpdf.model.AttachmentsResponse;
    import com.aspose.asposecloudpdfusecases.bookmarks.BookmarksHelper;

    public class AttachmentAdd {
        public static void Create() {
            String REMOTE_FOLDER                = "Your_Temp_Pdf_Cloud";
            String LOCAL_FOLDER                 = "c:\\Samples";
            String PDF_DOCUMENT                 = "sample.pdf";
            String PDF_OUTPUT                   = "attachments_add_output.pdf";
            String NEW_ATTACHMENT_FILE          = "sample_video.mp4";
            String NEW_ATTACHMENT_MIME          = "video/mp4";
            String NEW_ATTACHMENT_DECRIPTION    = "This is a sample attachment";

            try {
                PdfApi pdfApi = new PdfApi(API_KEY, API_SECRET);

                // upload local PDF file to remote storage
                File file = new File(Path.of(LOCAL_FOLDER, PDF_DOCUMENT).toString());
                pdfApi.uploadFile(Path.of(REMOTE_FOLDER , PDF_DOCUMENT).toString(), file, null);
                System.out.println(String.format("File '%s' successfully uploaded!", Path.of(LOCAL_FOLDER, PDF_DOCUMENT).toString()));

                // upload local attachment file to remote storage
                File attachFile = new File(Path.of(LOCAL_FOLDER, NEW_ATTACHMENT_FILE).toString());
                pdfApi.uploadFile(Path.of(REMOTE_FOLDER , NEW_ATTACHMENT_FILE).toString(), attachFile, null);
                System.out.println(String.format("File '%s' successfully uploaded!", Path.of(LOCAL_FOLDER, NEW_ATTACHMENT_FILE).toString()));

                AttachmentInfo attachment = new AttachmentInfo();
                attachment.setName(NEW_ATTACHMENT_FILE);
                attachment.setPath(NEW_ATTACHMENT_FILE);
                attachment.setDescription(NEW_ATTACHMENT_DECRIPTION);
                attachment.setMimeType(NEW_ATTACHMENT_MIME);

                AttachmentsResponse response = pdfApi.postAddDocumentAttachment(PDF_DOCUMENT, attachment, null, REMOTE_FOLDER);
                if (response.getCode() != 200)
                    System.err.println("Error: unexpected error when adding attachment! '" + response.getStatus() + "'");
                else {
                    // download changed PDF file from remote folder...
                    File f = BookmarksHelper.pdfApi().downloadFile(Path.of(REMOTE_FOLDER , PDF_DOCUMENT).toString(), null, null);
                    java.nio.file.Files.copy(Path.of(f.getPath()), Path.of(LOCAL_FOLDER, PDF_OUTPUT), StandardCopyOption.REPLACE_EXISTING);
                    System.out.println(String.format("File '%s' successfully dowloaded!", Path.of(LOCAL_FOLDER, PDF_OUTPUT).toString()));                
                    System.out.println("Successfully added attachment in document ! '" + PDF_OUTPUT + "'");
                }
            }
            catch (Exception e) {
                e.printStackTrace();
            }
        }
    }