To build, use ./gradlew clean build shadowJar on Linux, or gradlew.bat clean build shadowJar on Windows. This will produce a jar file in the directory build/libs/ called ocr-parser-tool-1.0-SNAPSHOT-all.jar.
java -jar ocr-parser-tool-1.0-SNAPSHOT-all.jar -f folder-to-scan -w 8 to scan the folder folder-to-scan using 8 threads.
For additional settings, use java -jar ocr-parser-tool-1.0-SNAPSHOT-all.jar -h