diff --git a/nuxeo-dlp-scanner-core/src/main/java/org/nuxeo/platform/scanner/dlp/google/GoogleRenditionProvider.java b/nuxeo-dlp-scanner-core/src/main/java/org/nuxeo/platform/scanner/dlp/google/GoogleRenditionProvider.java
index 3884b46..36a667a 100644
--- a/nuxeo-dlp-scanner-core/src/main/java/org/nuxeo/platform/scanner/dlp/google/GoogleRenditionProvider.java
+++ b/nuxeo-dlp-scanner-core/src/main/java/org/nuxeo/platform/scanner/dlp/google/GoogleRenditionProvider.java
@@ -146,7 +146,7 @@ public int compare(Blob o1, Blob o2) {
         try {
             PDFMergerUtility ut = new PDFMergerUtility();
             for (Blob blob : parts) {
-                ut.addSource(blob.getStream());
+                ut.addSource(blob.getCloseableFile().getFile());
             }
             return appendPDFs(ut, input.getBlob().getFilename());
         } catch (IOException iox) {
@@ -157,7 +157,7 @@ public int compare(Blob o1, Blob o2) {
     protected Blob appendPDFs(PDFMergerUtility ut, String filename) throws IOException {
         File tempFile = Framework.createTempFile("redacted_" + filename, ".pdf");
         ut.setDestinationFileName(tempFile.getAbsolutePath());
-        ut.mergeDocuments();
+        ut.mergeDocuments(null);
         Blob fb = Blobs.createBlob(tempFile);
         Framework.trackFile(tempFile, fb);
         fb.setFilename(tempFile.getName());