From 64dd253b4d64f65b5700e15997b76bd0a9a6a584 Mon Sep 17 00:00:00 2001
From: Vincent Vanwaelscappel <vincent@cubedesigners.com>
Date: Tue, 23 Aug 2022 20:14:00 +0200
Subject: [PATCH] wip #5412

---
 src/PDFTools.php | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/src/PDFTools.php b/src/PDFTools.php
index a886664..8a8a911 100644
--- a/src/PDFTools.php
+++ b/src/PDFTools.php
@@ -520,4 +520,20 @@ class PDFTools
         unlink($lock);
     }
 
+    public static function compressPDF($source, $dest, $resolution = 72)
+    {
+        $gs = new CommandLine('gs');
+        $gs->setArg('-dBATCH');
+        $gs->setArg('-dNOPAUSE');
+        $gs->setArg('-dNOPROMPT');
+        $gs->setArg('-sOutputFile=' . $dest);
+        $gs->setArg('-sDEVICE=pdfwrite');
+        $gs->setArg('-dPDFSETTINGS=/ebook');
+        $gs->setArg('-dColorImageResolution=' . $resolution);
+        $gs->setArg('-dAutoRotatePages=/None');
+        $gs->setArg('-dColorConversionStrategy=/LeaveColorUnchanged');
+        $gs->setArg(null, $source);
+        $gs->execute();
+    }
+
 }
-- 
2.39.5