PHP imagick with PDF issue

问题:

I am trying to convert the first page of a PDF to an image file.

I have the following code:

$im = new imagick('/images/test.pdf[0]');

$im->setImageFormat("jpg");
$page=$im->queryFormats();
echo "<pre>";
 print_r ($page);
echo "</pre>";

However, I get an error message saying:

Uncaught exception 'ImagickException' with message 'unable to open image

If I change:

$im = new imagick('/images/test.pdf[0]');

to:

$im = new imagick('/images/test.pdf');

I get the following error:

Uncaught exception 'ImagickException' with message 'Unable to read the file

I am sure the path to my PDF is correct and I'm not sure how to solve this. Can anyone help me out with this?

回答1:

Do you have a /images folder in the ROOT of your drive? Remember - imagick is running within PHP and has no clue whatsoever what your site's URL-space structure is. You need to use the local file system path, e.g.

$im = new imagick('/path/to/example.com/html/images/test.pdf[0]');