diff --git a/src/ZugferdDocumentPdfBuilderAbstract.php b/src/ZugferdDocumentPdfBuilderAbstract.php
index 2daf2e4..8b08043 100644
--- a/src/ZugferdDocumentPdfBuilderAbstract.php
+++ b/src/ZugferdDocumentPdfBuilderAbstract.php
@@ -667,11 +667,7 @@ protected function extractInvoiceInformations(): array
      */
     protected function isFile($pdfData): bool
     {
-        try {
-            return is_file($pdfData) && !is_link($pdfData) && is_readable($pdfData);
-        } catch (Throwable $throwable) {
-            return false;
-        }
+        return is_file($pdfData);
     }
 
     /**
diff --git a/src/ZugferdDocumentPdfMerger.php b/src/ZugferdDocumentPdfMerger.php
index 6d4a7aa..9d33057 100644
--- a/src/ZugferdDocumentPdfMerger.php
+++ b/src/ZugferdDocumentPdfMerger.php
@@ -106,11 +106,7 @@ protected function getXmlAttachmentXmpName(): string
      */
     protected function xmlDataIsFile(): bool
     {
-        try {
-            return is_file($this->xmlDataOrFilename) && !is_link($this->xmlDataOrFilename) && is_readable($this->xmlDataOrFilename);;
-        } catch (\TypeError $typeError) {
-            return false;
-        }
+        return is_file($this->xmlDataOrFilename);
     }
 
     /**