diff --git a/src/QrBill.php b/src/QrBill.php
index 775744e..adcae86 100644
--- a/src/QrBill.php
+++ b/src/QrBill.php
@@ -34,6 +34,9 @@ final class QrBill implements SelfValidatableInterface
     private ?PaymentReference $paymentReference = null;
     private ?AdditionalInformation $additionalInformation = null;
 
+    /** @var array<string, string> */
+    private array $unsupportedCharacterReplacements = [];
+
     /** @var AlternativeScheme[] */
     private array $alternativeSchemes = [];
 
@@ -162,10 +165,14 @@ public function addAlternativeScheme(AlternativeScheme $alternativeScheme): self
         return $this;
     }
 
-    /**
-     * @throws InvalidQrBillDataException
-     */
-    public function getQrCode(?string $fileFormat = null, array $unsupportedCharacterReplacements = []): QrCode
+    public function setUnsupportedCharacterReplacements(array $unsupportedCharacterReplacements): self
+    {
+        $this->unsupportedCharacterReplacements = $unsupportedCharacterReplacements;
+
+        return $this;
+    }
+
+    public function getQrCode(?string $fileFormat = null): QrCode
     {
         if (!$this->isValid()) {
             throw new InvalidQrBillDataException(
@@ -176,7 +183,7 @@ public function getQrCode(?string $fileFormat = null, array $unsupportedCharacte
         return QrCode::create(
             $this->getQrCodeContent(),
             $fileFormat,
-            $unsupportedCharacterReplacements
+            $this->unsupportedCharacterReplacements
         );
     }
 
diff --git a/src/QrCode/QrCode.php b/src/QrCode/QrCode.php
index ecb58a6..c02769d 100644
--- a/src/QrCode/QrCode.php
+++ b/src/QrCode/QrCode.php
@@ -36,6 +36,13 @@ final class QrCode
     /** @var array<string, bool> $writerOptions */
     private array $writerOptions = [SvgWriter::WRITER_OPTION_FORCE_XLINK_HREF => true];
 
+    /**
+     * @param string $data
+     * @param string|null $fileFormat
+     * @param array<string, string> $unsupportedCharacterReplacements
+     * @return self
+     * @throws UnsupportedFileExtensionException
+     */
     public static function create(string $data, string $fileFormat = null, array $unsupportedCharacterReplacements = []): self
     {
         if (null === $fileFormat) {
@@ -45,6 +52,12 @@ public static function create(string $data, string $fileFormat = null, array $un
         return new self($data, $fileFormat, $unsupportedCharacterReplacements);
     }
 
+    /**
+     * @param string $data
+     * @param string $fileFormat
+     * @param array<string, string> $unsupportedCharacterReplacements
+     * @throws UnsupportedFileExtensionException
+     */
     private function __construct(string $data, string $fileFormat, array $unsupportedCharacterReplacements)
     {
         $data = $this->replaceUnsupportedCharacters($data, $unsupportedCharacterReplacements);
@@ -132,6 +145,11 @@ public function avoidCompactSvgs(): void
         }
     }
 
+    /**
+     * @param string $data
+     * @param array<string, string> $unsupportedCharacterReplacements
+     * @return string
+     */
     private function replaceUnsupportedCharacters(string $data, array $unsupportedCharacterReplacements): string
     {
         foreach ($unsupportedCharacterReplacements as $character => $replacement) {
diff --git a/tests/QrBillTest.php b/tests/QrBillTest.php
index 4fd8d85..7b063de 100644
--- a/tests/QrBillTest.php
+++ b/tests/QrBillTest.php
@@ -268,9 +268,11 @@ public function testItConsidersReplacementCharacters()
             '»' => '"',
         ];
 
+        $qrBill->setUnsupportedCharacterReplacements($unsupportedCharacterReplacements);
+
         $this->assertStringContainsString(
             'Team "We are the Champions!"',
-            $qrBill->getQrCode(null, $unsupportedCharacterReplacements)->getText()
+            $qrBill->getQrCode()->getText()
         );
     }