License weights under CC-BY-4.0 with attribution and citation section

README.md

@@ -1,5 +1,5 @@
 ---
-license: apache-2.0
+license: cc-by-4.0
 tags: [pii, redaction, document-ai]
 ---
 
@@ -112,3 +112,24 @@ identifiers — not a k-anonymity guarantee or a compliance determination.
 See the Eka-PII-redactors repo (https://github.com/eka-care/Eka-PII-redactors)
 for the full API reference, the category taxonomy, and the Docker/FastAPI
 deployment setup (the same setup behind the demo Space above).
+
+## License and attribution
+
+These model weights are released under **CC-BY-4.0**: free to use, adapt,
+and build on — including commercially — but any public use or
+redistribution must **credit Eka Care** and link back to this repo
+(https://huggingface.co/ekacare/pii-redactors). The library code is
+Apache-2.0 at https://github.com/eka-care/Eka-PII-redactors.
+
+If you use the models or the library, please cite:
+
+```bibtex
+@software{eka_pii_redaction,
+  author = {{Eka Care}},
+  title  = {Eka-PII-redaction: detect, redact, de-identify, or anonymize
+            PII in document images and plain text},
+  year   = {2026},
+  url    = {https://github.com/eka-care/Eka-PII-redactors},
+  note   = {Model weights: https://huggingface.co/ekacare/pii-redactors}
+}
+```