How can I read a text file line by line in java with an indication of the offset and byte limit?

I have a text file of many lines. For example, a file of 10,000 bytes in size. Bytes of the digital signature are added to the file. I can calculate the size of these added bytes (for example, it’s 500 bytes).

How do I line by line (without loading the entire file into memory!) read from 0 to 9500 bytes?

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