From 6e0a30a7b690b87d816c4b3ae0a4c7176542c713 Mon Sep 17 00:00:00 2001
From: 0xCD <0xCD@users.noreply.github.com>
Date: Wed, 30 Dec 2015 19:05:52 +0900
Subject: [PATCH] Added PDF tag

---
 free-programming-books.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/free-programming-books.md b/free-programming-books.md
index 4846e227d..ded0b0316 100644
--- a/free-programming-books.md
+++ b/free-programming-books.md
@@ -955,7 +955,7 @@ Original Source: [List of freely available programming books](http://web.archive
 ### Delphi / Pascal
 
 * [Essential Pascal Version 1 and 2](http://www.marcocantu.com/epascal/)
-* [Free Pascal: Reference guide](http://ftp.icm.edu.pl/packages/fpc/docs-pdf/ref.pdf)
+* [Free Pascal: Reference guide](http://ftp.icm.edu.pl/packages/fpc/docs-pdf/ref.pdf) (PDF)
 
 
 ### DTrace