Based on the information provided in the extracts, Airbyte's S3 source connector supports the following file formats: CSV, Parquet, Avro, and JSONL. There is no mention of support for PDF or Docx file types. It's important to note that some formats may be experimental, so it's recommended to refer to the [official documentation](
https://docs.airbyte.com/integrations/sources/s3#file-format-settings) for the most accurate and up-to-date information.