diff --git a/composer.json b/composer.json
index 16ef742..ff8c78b 100644
--- a/composer.json
+++ b/composer.json
@@ -17,8 +17,9 @@
     ],
     "require": {
         "php": "^8.3",
+        "illuminate/contracts": "^10.0||^11.0",
         "spatie/laravel-package-tools": "^1.16",
-        "illuminate/contracts": "^10.0||^11.0"
+        "spatie/temporary-directory": "^2.2"
     },
     "require-dev": {
         "larastan/larastan": "^2.9",
diff --git a/src/Markitdown.php b/src/Markitdown.php
index 0548a9a..bcaf071 100755
--- a/src/Markitdown.php
+++ b/src/Markitdown.php
@@ -7,7 +7,9 @@
 use Illuminate\Process\PendingProcess;
 use Illuminate\Support\Facades\Config;
 use Illuminate\Support\Facades\Process;
+use Illuminate\Support\Str;
 use Innobrain\Markitdown\Exceptions\MarkitdownException;
+use Spatie\TemporaryDirectory\TemporaryDirectory;
 
 class Markitdown
 {
@@ -39,16 +41,20 @@ public function convert(string $filename): string
 
     public function convertString(string $content): string
     {
-        $processResult = $this->buildProcess()
-            ->command($this->executable)
-            ->input($content)
-            ->run();
+        $temporaryDirectory = (new TemporaryDirectory('ib_markitdown'))
+            ->deleteWhenDestroyed()
+            ->create();
 
-        if (! $processResult->successful()) {
-            throw MarkitdownException::processFailed($this->executable, $processResult->errorOutput());
-        }
+        $tempPath = $temporaryDirectory
+            ->path(Str::random(40).'.tmp');
 
-        return $processResult->output();
+        try {
+            file_put_contents($tempPath, $content);
+
+            return $this->convert($tempPath);
+        } finally {
+            $temporaryDirectory->delete();
+        }
     }
 
     private function buildProcess(): PendingProcess