在 Java SDK 中将 PDF 转换为 PDF/A

    package com.aspose.asposecloudpdfusecases.conversions;

    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.AsposeResponse;
    import com.aspose.asposecloudpdf.model.PdfAType;

    public class ConvertPDFToPdfA {
        public static void Convert() {
            String REMOTE_FOLDER   = "Your_Temp_Pdf_Cloud";
            String LOCAL_FOLDER    = "c:\\Samples";

            String PDF_FILE_NAME  = "sample.pdf";
            String PDF_OUTPUT = "convert_pdf_pdfa_output.pdf";
        
            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_FILE_NAME).toString());
                String srcPath = Path.of(REMOTE_FOLDER, PDF_FILE_NAME).toString();
                pdfApi.uploadFile(srcPath, file, null);
                System.out.println(String.format("Files successfully uploaded!"));

            // convert PDF to PDF
                AsposeResponse response = pdfApi.putPdfInStorageToPdfA(PDF_FILE_NAME, Path.of(REMOTE_FOLDER, PDF_OUTPUT).toString(), PdfAType.PDFA1A.toString(), REMOTE_FOLDER, null, null);

                if (response.getCode() != 200)
                    System.err.println("Error: unexpected error when converting PDF to PDF! '" + response.getStatus() + "'");
                else{
                    // download changed PDF file from remote folder...
                    File f = pdfApi.downloadFile(Path.of(REMOTE_FOLDER, PDF_OUTPUT).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 converted PDF document to PDF/A ! '" + PDF_OUTPUT + "'");
                }

            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }