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通过 PHP SDK 在 PDF 页脚中添加图像

使用云 PHP SDK 在 PDF 文档的页脚中添加图像。

如何通过云 PHP SDK 在 PDF 页脚中添加图像

要在 PDF 页脚中添加图像，我们将使用 Aspose.PDF Cloud PHP SDK 此云 SDK 帮助 PHP 程序员使用 PHP 编程语言通过 Aspose.PDF REST API 开发基于云的 PDF 创建、注释、编辑和转换应用程序。只需在 Aspose for Cloud 创建一个账户并获取您的应用程序信息。一旦您拥有 App SID 和密钥，您就可以准备好使用 Aspose.PDF Cloud PHP SDK。

包管理器控制台命令     
    composer install

通过云 PHP 添加图像到页脚的步骤

Aspose.PDF Cloud 开发者可以轻松地在 PDF 页脚中加载并添加图像，只需几行代码。

上传一个 PDF 文档
通过添加页脚图像来修改 PDF
下载更新后的文档

使用 PHP 在 PDF 页脚中添加图像
    private function _create_rest_api() {
        $credentials = json_decode(file_get_contents("./Credentials/credentials.json"), true);

        $configAuth = new Configuration();
        $configAuth->setAppKey($credentials['key']);
        $configAuth->setAppSid($credentials['id']);

        $this->pdfApi = new PdfApi(null, $configAuth);
     }

    public function __construct($config) {
        $this->configParams = $config;
        $this->_create_rest_api();
    }

    public function uploadFile($fileName) {
        $filePath = $this->configParams['LOCAL_FOLDER'] . $fileName;
        $fileData = file_get_contents($filePath);

        $response = $this->pdfApi->uploadFile($fileName, $fileData);
        if ($response->getCode() === 200) {
            echo "Uploaded file: {$filePath}\n";
        } else {
            echo 'Failed to upload file.';
        }
    }

    public function uploadDocument() {
        $this->uploadFile($this->configParams['PDF_DOCUMENT_NAME']);
    }

    public function downloadResult() {
        $response = $this->pdfApi->downloadFile($this->configParams['PDF_DOCUMENT_NAME']);
        $filePath = $this->configParams['LOCAL_FOLDER'] . $this->configParams['LOCAL_RESULT_DOCUMENT_NAME'];

        if ($response->getCode() === 200) {
            file_put_contents($filePath, $response->getContents());
            echo "Downloaded: $filePath\n";
        } else {
            echo "Failed to download file.";
        }
    }

    public function addImageFooter () {
        $imageFooter = new ImageFooter(array(
            'background' => true,
            'horizontal_alignment' => \Aspose\PDF\Model\HorizontalAlignment::CENTER,
            'file_name' => $this->configParams['IMAGE_FOOTER_FILE'],
            'width' => 24,
            'height' => 24,
        ));
        $resultFooter = $this->pdfApi->postDocumentImageFooter($this->configParams['PDF_DOCUMENT_NAME'], $imageFooter);

        if ($resultFooter->getCode() === 200) {
            echo 'Successfully appended image footer ' . $this->configParams['IMAGE_FOOTER_FILE'];
        }
        else
            throw new Error("Unexpected error : can't append image footer!");
    }

    function main() {
        global $configParams;

        try {
            $pdfHeaderFooter = new PdfHeaderFooter($configParams);
            $pdfHeaderFooter->uploadDocument();
            $pdfHeaderFooter->uploadFile($configParams['IMAGE_FOOTER_FILE']);
            $pdfHeaderFooter->addImageFooter();
            $pdfHeaderFooter->downloadResult();
        } catch (\Exception $e) {
            echo "Error: " . $e->getMessage() . "\n";
        }
    }