When reading a PDF from an ImageBlob, and you want to set the page to be used, this is the function to use.
(PECL imagick 2, PECL imagick 3)
Imagick::setImageIndex — Set the iterator position
This function has been DEPRECATED as of Imagick 3.4.4. Relying on this function is highly discouraged.
Set the iterator to the position in the image list specified with the index parameter.
This method has been deprecated. See Imagick::setIteratorIndex().
indexThe position to set the iterator to
Returns true on success.
Throws ImagickException on error.
When reading a PDF from an ImageBlob, and you want to set the page to be used, this is the function to use.when you read pdf by getImageBlog and want to get the image or blob of a specific page, use this function as below.
$ims = new Imagick();
$ims->readImageBlob($pdfFileContent);
$ims->setImageIndex(5); //this will return 6th page of the pdf file
$image->setImageFormat('png');
//etc
$blob = $image->getImageBlob();