mergeMultiplePDFs static method

Future<String?> mergeMultiplePDFs({
  1. required List<MergeInput> inputs,
  2. required String outputPath,
})

Merges multiple PDFs into a single file in a separate isolate.

This method spawns an isolate (or uses compute on the web) to process the PDF merging asynchronously.

  • inputs: A list of file paths of the input PDFs.
  • outputPath: The file path where the merged PDF will be saved.

Returns the path of the merged PDF, or null if an error occurs.

Implementation

static Future<String?> mergeMultiplePDFs({
  required List<MergeInput> inputs,
  required String outputPath,
}) async {
  if (PdfCombiner.isMock) {
    final error = await _validate(inputs, outputPath);
    if (error != null) return error;

    return await PdfCombinerPlatform.instance.mergeMultiplePDFs(
      inputs: inputs,
      outputPath: outputPath,
    );
  }
  return await compute(_combinePDFs, {
    'inputs': inputs,
    'outputPath': outputPath,
    'token': kIsWeb ? null : RootIsolateToken.instance!,
  });
}