Added PDF for pregenerated PDF

vendor/setasign/fpdi-fpdf/LICENSE.txt

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+The MIT License (MIT)
+
+Copyright (c) 2020 Setasign GmbH & Co. KG, https://www.setasign.com
+
+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.

vendor/setasign/fpdi-fpdf/README.md

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+# FPDI-FPDF
+A kind of metadata package for Composer with fixed dependencies for the latest versions of FPDI and FPDF.
+
+## Installation with [Composer](https://packagist.org/packages/setasign/fpdi-fpdf)
+
+```bash
+$ composer require setasign/fpdi-fpdf:2.3
+```
+
+or you can include the following in your composer.json file:
+
+```json
+{
+    "require": {
+        "setasign/fpdi-fpdf": "^2.3"
+    }
+}
+```

vendor/setasign/fpdi-fpdf/composer.json

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+{
+    "name": "setasign/fpdi-fpdf",
+    "homepage": "https://www.setasign.com/fpdi",
+    "description": "Kind of metadata package for dependencies of the latest versions of FPDI and FPDF.",
+    "type": "library",
+    "keywords": ["pdf", "fpdi", "fpdf"],
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Jan Slabon",
+            "email": "jan.slabon@setasign.com",
+            "homepage": "https://www.setasign.com"
+        }
+    ],
+    "require": {
+        "setasign/fpdf": "^1.8.2",
+        "setasign/fpdi": "^2.3"
+    }
+}