I wrote HWP v5 parser. HWP is the file format for Hancom Word Processor. It is very popular in South Korea. The parser has the features as below.
1. AutoDetectParser can detect HWP v5 format.
2. extracting Text from HWP v5 file.
3. extracting Metadata from summary information of HWP v5 format
I'll proceed the contribution via Github