diff --git a/src/services/reports.js b/src/services/reports.js
index 5e69549..80f773c 100644
--- a/src/services/reports.js
+++ b/src/services/reports.js
@@ -45,11 +45,11 @@ export const sendPDFExport = (authToken, applet, activities, appletResponse, cur
       })
     }
 
-    const encrypted = crypto.publicEncrypt(configs.publicEncryptionKey, Buffer.from(JSON.stringify(params)));
+    const encrypted = encryptData(configs.publicEncryptionKey, JSON.stringify(params));
     exportPDF(
       configs.serverIp,
       authToken,
-      encrypted.toString('base64'),
+      encrypted,
       applet.id.split('/').pop(),
       flowId && flowId.split('/').pop(),
       currentActivityId.split('/').pop(),
@@ -57,3 +57,14 @@ export const sendPDFExport = (authToken, applet, activities, appletResponse, cur
     )
   }
 }
+
+function encryptData(publicKey, data) {
+  const encrypted = [];
+  const chunkSize = parseInt(publicKey.length * 0.58);
+  const array = Buffer.from(data);
+  for (let i = 0; i < array.length; i += chunkSize) {
+    const chunk = array.slice(i, i + chunkSize);
+    encrypted.push(crypto.publicEncrypt(publicKey, chunk).toString('base64'));
+  }
+  return encrypted;
+}