diff --git a/src/utils.js b/src/utils.js
index 659ab132c0537ac24f1e3feb71e54ed9872291a0..e6e26ee6181b3d62351db980eddb5aa2594b5fbc 100644
--- a/src/utils.js
+++ b/src/utils.js
@@ -20,7 +20,7 @@ export const findObjectInApiResults = (identifier, results, identifierAttribute
 };
 
 export const getPDFFileBase64Content = (file) => {
-    return file.contentUrl.replace("data:application/pdf;base64,", "");
+    return file.contentUrl.replace(/data:\s*application\/pdf;\s*base64,/, "");
 };
 
 export const convertDataURIToBinary = (dataURI) => {