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Configurable convert options #9

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Configurable convert options #9

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25 changes: 24 additions & 1 deletion src/PDFLib.php
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Original file line number Diff line number Diff line change
Expand Up @@ -34,6 +34,7 @@ class PDFLib{
private $imageDeviceCommand;
private $imageExtention;
private $pngDownScaleFactor;
private $convertOptions = array();

private $is_os_win = null;
private $gs_command = null;
Expand All @@ -53,6 +54,7 @@ public function __construct(){
$this->imageDeviceCommand = "";
$this->imageExtention = "";
$this->pngDownScaleFactor = "";
$this->convertOptions = array(array("NumRenderingThreads", 4));

$this->setDPI(self::$MAX_RESOLUTION);
$this->setImageFormat(self::$IMAGE_FORMAT_JPEG);
Expand Down Expand Up @@ -99,6 +101,27 @@ public function setImageFormat($imageformat,$pngScaleFactor = null){
}
}

public function setConvertOption($name, $token) {
$this->unsetConvertOption($name);
$this->convertOptions[] = array($name, $token);
}

public function unsetConvertOption($name) {
foreach ($this->convertOptions as $key => $nametoken) {
if ($nametoken[0] == $name) {
unset($this->convertOptions[$key]);
}
}
}

protected function getConvertOptionsString() {
$options = array();
foreach ($this->convertOptions as $nametoken) {
$options[] = "-d$nametoken[0]=$nametoken[1]";
}
return implode(" ", $options);
}

public function getNumberOfPages(){
if($this->number_of_pages == -1){
$pages = $this->executeGS('-q -dNODISPLAY -c "("'.$this->pdf_path.'") (r) file runpdfbegin pdfpagecount = quit"',true);
Expand Down Expand Up @@ -126,7 +149,7 @@ public function convert(){
$this->jpeg_quality = 100;
}
$image_path = $this->output_path."/page-%d.".$this->imageExtention;
$output = $this->executeGS("-dSAFER -dBATCH -dNOPAUSE -sDEVICE=".$this->imageDeviceCommand." ".$this->pngDownScaleFactor." -r".$this->resolution." -dNumRenderingThreads=4 -dFirstPage=".$this->page_start." -dLastPage=".$this->page_end." -o\"".$image_path."\" -dJPEGQ=".$this->jpeg_quality." -q \"".($this->pdf_path)."\" -c quit");
$output = $this->executeGS("-dSAFER -dBATCH -dNOPAUSE -sDEVICE=".$this->imageDeviceCommand." ".$this->pngDownScaleFactor." -r".$this->resolution." ".$this->getConvertOptionsString()." -dFirstPage=".$this->page_start." -dLastPage=".$this->page_end." -o\"".$image_path."\" -dJPEGQ=".$this->jpeg_quality." -q \"".($this->pdf_path)."\" -c quit");

$fileArray = [];
for($i=1; $i<=($this->page_end - $this->page_start + 1); ++$i){
Expand Down