Load document from stream

There might be a case when your file is not physically located on the disk. Instead, you have the file in the form of a stream. In this case, to avoid the overhead of saving the stream as a file on disk, GroupDocs.Conversion enables you to convert the file streams directly.

To load a file from a stream, follow these steps:

  1. Specify the method to obtain the file stream.
  2. Pass the method’s name to the Converter class constructor.

The following code snippet serves this purpose:

import com.groupdocs.conversion.Converter;
import com.groupdocs.conversion.exceptions.GroupDocsConversionException;
import com.groupdocs.conversion.options.convert.PdfConvertOptions;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
    Converter converter = new Converter(() -> {
                try {
                    return new FileInputStream("sample.docx");
                } catch (FileNotFoundException e) {
                    throw new RuntimeException(e);
    PdfConvertOptions options = new PdfConvertOptions();

    converter.convert("converted.pdf", options);
} catch (Exception e){
    throw new GroupDocsConversionException(e.getMessage());

The snippet above uses the FileInputStream class instance. Similarly, you can use any other type of stream. Just make sure that the source stream contains any of the supported file formats.