Save PDF Documents

• Jul 13, 2026
• 2 minutes to read

Use the PdfDocument.save() method to write a PDF document to an output stream or a writable channel. You can also specify SaveOptions for the save operation.

Save a Document to a Writable Channel

Use the save(WritableByteChannel channel, SaveOptions options) method to save a PDF document to a writable channel and specify save options.

The following code snippet loads a PDF document, adds a page, and saves the document using a writable channel:

import com.devexpress.docs.pdf.*;
import com.devexpress.drawing.printing.*;

import java.nio.channels.*;
import java.nio.file.*;

public class Main {
    public static void main(String[] args) throws Exception {
        try (FileChannel channel = FileChannel.open(Path.of("Document.pdf"));
             PdfDocument pdfDocument = new PdfDocument(channel)) {

            // Add an A4-size page to the document.
            pdfDocument.getPages().add(DXPaperKind.A4);

            // Configure save options.
            SaveOptions saveOptions = new SaveOptions();
            saveOptions.setUpdateCreatedAt(true);
            saveOptions.setSyncMetadata(true);

            // Save the document to a PDF file.
            try (WritableByteChannel writableByteChannel =
                         FileChannel.open(Path.of("Document.pdf"),
                                 StandardOpenOption.CREATE,
                                 StandardOpenOption.WRITE,
                                 StandardOpenOption.TRUNCATE_EXISTING)) {

                pdfDocument.save(writableByteChannel, saveOptions);
            }
        }
    }
}

Save a Document to an Output Stream

Use the save(OutputStream stream) method to save a PDF document to an output stream.

The following code snippet loads a PDF document, adds a page, and saves the document using an output stream:

package barcodes;

import com.devexpress.docs.pdf.*;
import com.devexpress.drawing.printing.*;

import java.io.OutputStream;
import java.nio.file.*;

public class Main {
    public static void main(String[] args) throws Exception {
        try (InputStream stream =
                     Files.newInputStream(Path.of("Document.pdf"));
             PdfDocument pdfDocument = new PdfDocument(stream)) {

            // Add an A4-size page to the document.
            pdfDocument.getPages().add(DXPaperKind.A4);

            // Configure save options.
            SaveOptions saveOptions = new SaveOptions();
            saveOptions.setUpdateCreatedAt(true);
            saveOptions.setSyncMetadata(true);

            // Save the document to a PDF file.
            try (OutputStream outputStream =
                         Files.newOutputStream(Path.of("Document.pdf"))) {

                pdfDocument.save(outputStream);
            }
        }
    }
}