如何在laravel中从PDF上传生成缩略图

Question

我正在尝试生成我上传的PDF的缩略图，缩略图应该是PDF的第一页。现在我正在手动上传一张图片，使缩略图如下：

if (request()->has('pdf')) {
$pdfuploaded = request()->file('pdf');
$pdfname = $request->book_name . time() . '.' . $pdfuploaded->getClientOriginalExtension();
$pdfpath = public_path('/uploads/pdf');
$pdfuploaded->move($pdfpath, $pdfname);
$book->book_file = '/uploads/pdf/' . $pdfname;
$pdf = $book->book_file;
}
if (request()->has('cover')) {
$coveruploaded = request()->file('cover');
$covername = $request->book_name . time() . '.' . $coveruploaded->getClientOriginalExtension();
$coverpath = public_path('/uploads/cover');
$coveruploaded->move($coverpath, $covername);
$book->card_image = '/uploads/cover/' . $covername;

}

当输入许多我想自动生成缩略图的数据时，这可能会很乏味。我搜索了很多答案，但找不到具体的答案。我尝试使用ImageMagic和Ghost脚本，但找不到解决方案和合适的角色来实现。

Answer 1

对不起，还不能发表评论！当文件上传时，您可以使用spatie/pdf-to-image将第一页解析为图像，并将其存储在您的存储器中，并将链接保存在数据库中。

首先，您需要安装并配置php-imagick和ghostscript。有关ghostscript安装的问题，您可以参阅。然后添加包composer require spatie/pdf-to-image。

根据您的代码示例：

if (request()->has('pdf')) {
$pdfuploaded = request()->file('pdf');
$pdfname = $request->book_name . time() . '.' . $pdfuploaded->getClientOriginalExtension();
$pdfpath = public_path('/uploads/pdf');
$pdfuploaded->move($pdfpath, $pdfname);
$book->book_file = '/uploads/pdf/' . $pdfname;
$pdf = $book->book_file;
$pdfO = new SpatiePdfToImagePdf($pdfpath . '/' . $pdfname);
$thumbnailPath = public_path('/uploads/thumbnails');
$thumbnail = $pdfO->setPage(1)
->setOutputFormat('png')
->saveImage($thumbnailPath . '/' . 'YourFileName.png');
// This is where you save the cover path to your database.
}