=== modified file 'src/book.vala'
--- src/book.vala	2011-11-09 00:29:48 +0000
+++ src/book.vala	2012-02-13 15:23:52 +0000
@@ -294,7 +294,7 @@
                 int shift_count = 6;
                 depth = 2;
                 color_space = "DeviceGray";
-                var data_length = height * ((width * 2 + 7) / 8);
+                var data_length = height * ((width * 2 + 7) / 8) + 1;
                 data = new uint8[data_length];
                 var offset = 0;
                 data[offset] = 0;
@@ -335,7 +335,7 @@
 
                 depth = 1;
                 color_space = "DeviceGray";
-                var data_length = height * ((width + 7) / 8);
+                var data_length = height * ((width + 7) / 8) + 1;
                 data = new uint8[data_length];
                 var offset = 0;
                 data[offset] = 0;