diff --git a/CHANGELOG.md b/CHANGELOG.md
index a4530a9..a7cba08 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,12 @@ All notable changes to `SSL converter` will be documented in this file.
 Updates should follow the [Keep a CHANGELOG](http://keepachangelog.com/) principles.
 
 ## Unreleased
-[Compare v0.0.2 - Unreleased](https://github.com/exonet/ssl-converter/compare/v0.0.1...develop)
+[Compare v0.0.3 - Unreleased](https://github.com/exonet/ssl-converter/compare/v0.0.3...develop)
+
+## [v0.0.3](https://github.com/exonet/ssl-converter/releases/tag/v0.0.3) - 2019-02-22
+[Compare v0.0.2 - v0.0.3](https://github.com/exonet/ssl-converter/compare/v0.0.2...v0.0.3)
+### Fixed
+- When converting to PEM the CRT and key are now formatted correctly stripping all invalid newlines. 
 
 ## [v0.0.2](https://github.com/exonet/ssl-converter/releases/tag/v0.0.2) - 2019-02-18
 [Compare v0.0.1 - v0.0.2](https://github.com/exonet/ssl-converter/compare/v0.0.1...v0.0.2)
diff --git a/src/Formats/Pem.php b/src/Formats/Pem.php
index b4ca4d8..5aad99e 100644
--- a/src/Formats/Pem.php
+++ b/src/Formats/Pem.php
@@ -30,8 +30,27 @@ public function toString() : string
             throw new MissingRequiredInformation('The following fields are required for PEM: CRT, CA Bundle.');
         }
 
+        $possibleNewLines = ["\x0D", "\r", "\n", '\n', '\r'];
+
+        // Strip all kind of (wrong) newlines, indentations, etc. and create a correct certificate from the CRT.
+        $x509cert = str_replace($possibleNewLines, '', $crt);
+        $x509cert = str_replace('-----BEGIN CERTIFICATE-----', '', $x509cert);
+        $x509cert = str_replace('-----END CERTIFICATE-----', '', $x509cert);
+        $x509cert = str_replace(' ', '', $x509cert);
+        $x509cert = "-----BEGIN CERTIFICATE-----\n".chunk_split($x509cert, 64, "\n")."-----END CERTIFICATE-----\n";
+
+        // Clean the newlines in the key.
+        if ($key) {
+            $x509key = str_replace($possibleNewLines, '', $key);
+            $x509key = str_replace('-----BEGIN PRIVATE KEY-----', '', $x509key);
+            $x509key = str_replace('-----END PRIVATE KEY-----', '', $x509key);
+            $x509key = str_replace(' ', '', $x509key);
+            $x509key = "-----BEGIN PRIVATE KEY-----\n".chunk_split($x509key, 64, "\n")."-----END PRIVATE KEY-----\n";
+        }
+
         // If there is a key, prepend the certificate content with the key.
-        $content = $key ? $key.$crt.$caBundle : $crt.$caBundle;
+        $content = $key ? $x509key.$x509cert.$caBundle : $x509cert.$caBundle;
+
         if (!openssl_x509_read($content)) {
             throw new InvalidResource('Invalid certificate provided.');
         }