Java - S3 PDF file read line by line

No, it is not possible to directly read the content of the S3 object object. reading and writing content in S3 must be based on the object as the basic unit.

You can consider the following different ways to perform S3 object RW:

1. Use SDK(for example java sdk v2)download S3 object,then modify the content , finally, upload the new object to S3 for saving
2. use Mountpoint for Amazon S3

If you need to perform remote file read and write operations, perhaps AWS EFS is more suitable for you