Fix misplaced/mispositioned doc comments in PdfMerger

Author: gray-adeyi

lib/src/main/java/dev/foliopdf/PdfMerger.java

@@ -143,12 +143,6 @@ public void save(String path) {
         FolioNative.mergeSave(handle.get(), path);
     }
 
-    /**
-     * Renders the merged document to an in-memory byte array.
-     *
-     * @return the PDF bytes
-     * @throws FolioException if the write fails
-     */
     /** Returns the number of pages in the merged document. */
     public int pageCount() {
         return FolioNative.mergePageCount(handle.get());
@@ -190,6 +184,12 @@ public PdfMerger cropPage(int index, double x1, double y1, double x2, double y2)
         return this;
     }
 
+    /**
+     * Renders the merged document to an in-memory byte array.
+     *
+     * @return the PDF bytes
+     * @throws FolioException if the write fails
+     */
     public byte[] writeToBuffer() {
         long buf = FolioNative.mergeWriteToBuffer(handle.get());
         if (buf == 0) throw new FolioException("Failed to write merged PDF to buffer: " + FolioNative.lastError());