diff --git a/README.md b/README.md
index f2f5c2a..2586f7f 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,9 @@ Supports **tabular data** with automatic column detection, and **rule-based pars
 
 Dependencies: it is based on [pdf2json](https://www.npmjs.com/package/pdf2json), which itself relies on Mozilla's [pdf.js](https://github.com/mozilla/pdf.js/).
 
-ℹ️ This module is meant to be run using Node.js only. **It does not work from a web browser.**
+ℹ️ Important notes:
+- This module is meant to be run using Node.js only. **It does not work from a web browser.**
+- This module extracts text entries from PDF files. It does not support photographed text. If you cannot select text from the PDF file, **you may need to use OCR software first**.
 
 Summary: