diff --git a/docs/generate.coffee b/docs/generate.coffee
index c872dd2..6287da3 100644
--- a/docs/generate.coffee
+++ b/docs/generate.coffee
@@ -242,10 +242,11 @@ renderTitlePage = (doc) ->
 # render all sections of the guide and write the pdf file
 do ->
   doc = new PDFDocument
+  doc.pipe fs.createWriteStream('guide.pdf')
   renderTitlePage doc
   render doc, 'getting_started.coffee.md'
   render doc, 'vector.coffee.md'
   render doc, 'text.coffee.md'
   render doc, 'images.coffee.md'
   render doc, 'annotations.coffee.md'
-  doc.write 'guide.pdf'
\ No newline at end of file
+  doc.end()
diff --git a/docs/guide.pdf b/docs/guide.pdf
index 9fd236f..a69d52b 100644
Binary files a/docs/guide.pdf and b/docs/guide.pdf differ