feat: improve PHPDoc (#34)

* feat: improve PHPDoc

---------

Co-authored-by: Christopher Georg <christopher.georg@sr-travel.de>

Author: Chris53897

CHANGELOG.md

@@ -4,6 +4,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+
+## [3.3.1] - 2025-02-19
+### Added
+- `@throws` to PHPDoc for better IDE support
+
 ## [3.3.0] - 2025-02-19
 ### Added
 - Method `getFiles()`

src/PdfMerge.php

@@ -35,6 +35,8 @@ public function getPdf(): TCPDI
 
     /**
      * Adds a file to merge
+     *
+     * @throws FileNotFoundException
      */
     public function add(string $file): void
     {
@@ -63,6 +65,8 @@ public function reset(): void
 
     /**
      * Generates a merged PDF file from the already stored PDF files
+     *
+     * @throws NoFilesDefinedException
      */
     public function merge(string $outputFilename, string $destination = 'F'): string
     {