Update README.md

hwding · hwding · commit 83865bf04495 · 2017-09-05T23:54:35.000+08:00
diff --git a/README.md b/README.md
@@ -3,8 +3,6 @@
 
 Remove text stamps of **any font**, **any encoding** and **any language** with pdf-unstamper now!
 
-Powered by [Apache PDFBox®](https://pdfbox.apache.org/).
-
 ## Effect
 <table>
 <thead>
