diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..d862e03
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2025 Apps Dev Team
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/composer.json b/composer.json
index fac40cf..0207ae4 100644
--- a/composer.json
+++ b/composer.json
@@ -5,6 +5,7 @@
       "src/"
     ]
   },
+  "license": "MIT",
   "require": {
     "nette/utils": "^2.0|^3.0|^4.0"
   },
diff --git a/src/Filters/Image.php b/src/Filters/Image.php
index 7a272aa..556a82d 100644
--- a/src/Filters/Image.php
+++ b/src/Filters/Image.php
@@ -33,13 +33,15 @@ public function __construct(string $path, string $dir = 'thumbnails', int $multi
 	 */
 	public function format(string $url, int $width, int $height, int $mode = \Nette\Utils\Image::OrSmaller, int $format = IMAGETYPE_WEBP): string
 	{
+		$originalUrl = $url;
+
 		$isRemoteUrl = $this->isRemoteUrl($url);
 
 		// original file does not exist
 		if ($isRemoteUrl) {
 			$contents = @file_get_contents($url);
 			if (!$contents) {
-				return $url;
+				return $originalUrl;
 			}
 
 			list($urlWithoutExtension,) = $this->splitUrlOnLastDot($this->removeProtocol($url));
@@ -47,12 +49,12 @@ public function format(string $url, int $width, int $height, int $mode = \Nette\
 		} else {
 			$url = trim($url, '/');
 			if (!file_exists($this->path . '/' . $url))  {
-				return $url;
+				return $originalUrl;
 			}
 			$contents = file_get_contents($this->path . '/' . $url);
 
 			if ($this->isAnimatedGif($contents)) {
-				return $url;
+				return $originalUrl;
 			}
 
 			list($urlWithoutExtension,) = $this->splitUrlOnLastDot($url);
@@ -61,6 +63,10 @@ public function format(string $url, int $width, int $height, int $mode = \Nette\
 		$width = $width * $this->multiplier;
 		$height = $height * $this->multiplier;
 		$ext = pathinfo(parse_url($url, PHP_URL_PATH), PATHINFO_EXTENSION);
+		if ($ext === 'svg') {
+			return $originalUrl;
+		}
+
 		$newFile = $this->dir . '/' . $urlWithoutExtension . '_' . $width . '_' . $height . '_' . $mode . '_' . $ext . '.' . self::FormatToExtensions[$format];
 
 		$this->createImage($contents, $width, $height, $mode, $format, $this->path . '/' . $newFile);
diff --git a/src/Guzzle.php b/src/Guzzle.php
index ada18ab..60ba4a1 100644
--- a/src/Guzzle.php
+++ b/src/Guzzle.php
@@ -5,11 +5,15 @@
 use GuzzleHttp\Exception\ConnectException;
 use GuzzleHttp\Exception\GuzzleException;
 use GuzzleHttp\Exception\RequestException;
-use GuzzleHttp\Psr7\Message;
+use Psr\Http\Message\MessageInterface;
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
 use Throwable;
 
 class Guzzle
 {
+	private const MAX_BODY_LENGTH = 10000;
+
 	/**
 	 * @throws Throwable
 	 */
@@ -18,13 +22,75 @@ public static function handleException(Throwable $e): ?Exception
 		if ($e instanceof GuzzleException) {
 			$message = '';
 			if ($e instanceof ConnectException || $e instanceof RequestException) {
-				$message = "--- REQUEST ---\n" . Message::toString($e->getRequest()) . "\n --- RESPONSE ---\n";
+				$message = "--- REQUEST ---\n" . self::sanitizeMessage(self::messageToString($e->getRequest())) . "\n --- RESPONSE ---\n";
 			}
-			$message .= ($e instanceof RequestException && $e->getResponse() ? Message::toString($e->getResponse()) : $e->getMessage());
+			$message .= ($e instanceof RequestException && $e->getResponse() ? self::sanitizeMessage(self::messageToString($e->getResponse())) : $e->getMessage());
 
 			throw new Exception($message);
 		}
 
 		throw $e;
 	}
+
+	/**
+	 * Obdoba GuzzleHttp\Psr7\Message::toString(), ale tělo čte ze streamu jen do MAX_BODY_LENGTH.
+	 * Message::toString() načítá celé tělo do paměti, což u velkých těl (např. upload souboru
+	 * v multipart requestu) shodí proces na memory limitu ještě před ořezáním v sanitizeMessage().
+	 */
+	private static function messageToString(MessageInterface $message): string
+	{
+		if ($message instanceof RequestInterface) {
+			$msg = trim($message->getMethod() . ' ' . $message->getRequestTarget()) . ' HTTP/' . $message->getProtocolVersion();
+			if (!$message->hasHeader('host')) {
+				$msg .= "\r\nHost: " . $message->getUri()->getHost();
+			}
+		} elseif ($message instanceof ResponseInterface) {
+			$msg = 'HTTP/' . $message->getProtocolVersion() . ' ' . $message->getStatusCode() . ' ' . $message->getReasonPhrase();
+		} else {
+			$msg = '';
+		}
+
+		foreach ($message->getHeaders() as $name => $values) {
+			$msg .= "\r\n" . $name . ': ' . implode(', ', $values);
+		}
+
+		$body = '';
+		$stream = $message->getBody();
+		if ($stream->isSeekable() && $stream->isReadable()) {
+			$size = $stream->getSize();
+			$stream->seek(0);
+			$body = $stream->read(self::MAX_BODY_LENGTH);
+			if ($size === null || $size > self::MAX_BODY_LENGTH) {
+				$body .= "\n\n... [truncated" . ($size !== null ? ', total ' . $size . ' bytes' : '') . ']';
+			}
+		}
+
+		return $msg . "\r\n\r\n" . $body;
+	}
+
+	private static function sanitizeMessage(string $message): string
+	{
+		// Odstraneni binarnich dat (null byty apod.)
+		if (preg_match('/[^\x20-\x7E\x0A\x0D\t]/u', $message)) {
+			// Najdeme konec hlavicek (prazdny radek)
+			$headerEnd = strpos($message, "\r\n\r\n");
+			if ($headerEnd === false) {
+				$headerEnd = strpos($message, "\n\n");
+			}
+
+			if ($headerEnd !== false) {
+				$headers = substr($message, 0, $headerEnd);
+				return $headers . "\n\n[binary data removed]";
+			}
+
+			return '[binary data removed]';
+		}
+
+		// Oriznuti prilis dlouhych textovych odpovedi
+		if (strlen($message) > self::MAX_BODY_LENGTH) {
+			return substr($message, 0, self::MAX_BODY_LENGTH) . "\n\n... [truncated, total " . strlen($message) . " bytes]";
+		}
+
+		return $message;
+	}
 }
diff --git a/src/JsComponents.php b/src/JsComponents.php
index 12b9686..2e49c73 100644
--- a/src/JsComponents.php
+++ b/src/JsComponents.php
@@ -2,17 +2,25 @@
 
 namespace ADT\Utils;
 
+use Nette\Utils\Json;
+
 class JsComponents
 {
 	protected array $components = [];
 
 	public function generateConfig(): string
 	{
-		return json_encode($this->components);
+		return Json::encode($this->components);
 	}
 
 	public function setRecaptcha(string $siteKey): string
 	{
 		return $this->components['recaptcha']['siteKey'] = $siteKey;
 	}
+
+	public function setComponents(array $components): self
+	{
+		$this->components = array_merge($this->components, $components);
+		return $this;
+	}
 }
diff --git a/src/TErrorPresenter.php b/src/TErrorPresenter.php
index 42a921c..6f1dcff 100644
--- a/src/TErrorPresenter.php
+++ b/src/TErrorPresenter.php
@@ -2,6 +2,7 @@
 
 namespace ADT\Utils;
 
+use Nette\Application\Attributes\Persistent;
 use Nette\Application\BadRequestException;
 use Nette\Application\Helpers;
 use Nette\Routing\Router;
@@ -15,7 +16,7 @@ trait TErrorPresenter
 	protected bool $log404 = true;
 	protected bool $log500 = true;
 
-	/** @persistent */
+	#[Persistent]
 	public $url;
 
 	public function __construct(Router $router)