CREDITSOpen-source softwareFileChak uses established open-source projects. Copyright and licenses remain with their respective authors.pdf-libMITrhwp / @rhwp/coreMITPDF.jsApache-2.0Mammoth.jsBSD-2-ClauseExcelJSMITJSZipMITheic2anyMITScanic (document corner detection and perspective correction)MIT