diff --git a/library/AppleSingle_AppleDouble.pdf b/library/AppleSingle_AppleDouble.pdf
new file mode 100644
index 0000000..77d04ce
Binary files /dev/null and b/library/AppleSingle_AppleDouble.pdf differ
diff --git a/library/index.htm b/library/index.htm
index f64fc51..2b1e46a 100644
--- a/library/index.htm
+++ b/library/index.htm
@@ -34,6 +34,8 @@ documents and outdated versions of programs.</p>
     ($e0/$0001)</a> (17K text)</li>
   <li><a href="FTN.e000023.htm">Apple II File Type Note for AppleDouble
     ($e0/$0002 &amp; $0003)</a> (23K text)</li>
+  <li><a href="AppleSingle_AppleDouble.pdf">AppleSingle/AppleDouble version 2</a>
+    (35K PDF)</li>
   <li><a href="FTN.e00005.htm">Apple II File Type Note for DiskCopy images
     ($e0/$0005)</a> (10K text)</li>
   <li><a href="FTN.e08000.htm">Apple II File Type Note for Binary II files