From 7226b171653f934b3995520e0f0af102a8fc6ec0 Mon Sep 17 00:00:00 2001
From: Dan Howe <d.howe@wrl.unsw.edu.au>
Date: Thu, 19 Apr 2018 13:32:16 +1000
Subject: [PATCH] Update readme

---
 README.md | 21 +++++++++++++++++----
 1 file changed, 17 insertions(+), 4 deletions(-)

diff --git a/README.md b/README.md
index 2ada548..c55f71f 100644
--- a/README.md
+++ b/README.md
@@ -4,14 +4,27 @@ __pdf_unlock.py__ removes security features from pdfs, to allow unrestricted pri
 
 ## Installation ##
 
-[Ghostscript](https://ghostscript.com) and [Poppler](http://blog.alivate.com.au/poppler-windows) are required.
+[Ghostscript](https://ghostscript.com) and [Poppler](https://poppler.freedesktop.org/) are required.
 
-Windows users will have to add the binary directories to the `PATH` environment variable manually, eg:
+**Windows**:  
+https://www.ghostscript.com/download  
+http://blog.alivate.com.au/poppler-windows
+
+**Linux**:  
+`sudo apt install ghostscript`  
+`sudo apt install poppler-utils`
+
+**Mac**:  
+`brew install ghostscript`  
+`brew install poppler`
+
+Then
 
 ```
-C:\Program Files\gs\gs9.21\bin
-C:\Program Files\poppler\bin
+pip install tqdm
 ```
+
+
 ## Usage ##