diff --git a/core/core-awt/src/main/java/org/icepdf/core/pobjects/Document.java b/core/core-awt/src/main/java/org/icepdf/core/pobjects/Document.java
index cadbbdac5..0e85555dc 100644
--- a/core/core-awt/src/main/java/org/icepdf/core/pobjects/Document.java
+++ b/core/core-awt/src/main/java/org/icepdf/core/pobjects/Document.java
@@ -195,9 +195,12 @@ public void setFile(String filepath)
         try {
             randomAccessFile = new RandomAccessFile(file, "r");
             documentFileChannel = randomAccessFile.getChannel();
-            ByteBuffer mappedFileByteBuffer = documentFileChannel.map(
-                    FileChannel.MapMode.READ_ONLY, 0, documentFileChannel.size());
-            setInputStream(mappedFileByteBuffer);
+            long fileSize = documentFileChannel.size();
+            // Create an in memory file opy
+            ByteBuffer buffer = ByteBuffer.allocate((int) fileSize);
+            documentFileChannel.read(buffer);
+            buffer.flip();
+            setInputStream(buffer);
         } catch (Exception e) {
             logger.log(Level.SEVERE, "Failed to set document file path", e);
             throw e;
@@ -271,9 +274,12 @@ public void setInputStream(InputStream inputStream, String pathOrURL)
             try {
                 randomAccessFile = new RandomAccessFile(tempFile, "r");
                 documentFileChannel = randomAccessFile.getChannel();
-                ByteBuffer mappedFileByteBuffer = documentFileChannel.map(
-                        FileChannel.MapMode.READ_ONLY, 0, documentFileChannel.size());
-                setInputStream(mappedFileByteBuffer);
+                long fileSize = documentFileChannel.size();
+                // Create an in memory file opy
+                ByteBuffer buffer = ByteBuffer.allocate((int) fileSize);
+                documentFileChannel.read(buffer);
+                buffer.flip();
+                setInputStream(buffer);
             } catch (Exception e) {
                 logger.log(Level.SEVERE, "Failed to set document input stream", e);
                 throw e;
@@ -327,9 +333,12 @@ public void setByteArray(byte[] data, int offset, int length, String pathOrURL)
             try {
                 randomAccessFile = new RandomAccessFile(tempFile, "r");
                 documentFileChannel = randomAccessFile.getChannel();
-                ByteBuffer mappedFileByteBuffer = documentFileChannel.map(
-                        FileChannel.MapMode.READ_ONLY, 0, documentFileChannel.size());
-                setInputStream(mappedFileByteBuffer);
+                long fileSize = documentFileChannel.size();
+                // Create an in memory file opy
+                ByteBuffer buffer = ByteBuffer.allocate((int) fileSize);
+                documentFileChannel.read(buffer);
+                buffer.flip();
+                setInputStream(buffer);
             } catch (Exception e) {
                 logger.log(Level.SEVERE, "Failed to set document input stream", e);
                 throw e;