// PDFNet::AddFontSubst(PDFNet::e_Japan2, "c:/myfonts/KozMinProVI-Regular.otf");
// PDFNet::AddFontSubst(PDFNet::e_Korea1, "AdobeMyungjoStd-Medium.otf");
// PDFNet::AddFontSubst(PDFNet::e_CNS1, "AdobeSongStd-Light.otf");
// PDFNet::AddFontSubst(PDFNet::e_GB1, "AdobeMingStd-Light.otf");
$draw = new PDFDraw();
//--------------------------------------------------------------------------------
// Example 1) Convert the first page to PNG and TIFF at 92 DPI.
// A three step tutorial to convert PDF page to an image.
// A) Open the PDF document.
$doc = new PDFDoc($input_path . "tiger.pdf");
// Initialize the security handler, in case the PDF is encrypted.
$doc->InitSecurityHandler();
// B) The output resolution is set to 92 DPI.
$draw->SetDPI(92);
// C) Rasterize the first page in the document and save the result as PNG.
$draw->Export($doc->GetPageIterator()->Current(), $output_path . "tiger_92dpi.png");
echo nl2br("Example 1: " . $output_path . "tiger_92dpi.png" . ". Done.\n");
// Export the same page as TIFF
$draw->Export($doc->GetPageIterator()->Current(), $output_path . "tiger_92dpi.tif", "TIFF");
//--------------------------------------------------------------------------------
// Example 2) Convert the all pages in a given document to JPEG at 72 DPI.
echo nl2br("Example 2:\n");
$hint_set = new ObjSet();
// A collection of rendering 'hits'.
$doc = new PDFDoc($input_path . "newsletter.pdf");
// Initialize the security handler, in case the PDF is encrypted.
$doc->InitSecurityHandler();
$draw->SetDPI(72);
// Set the output resolution is to 72 DPI.
// Use optional encoder parameter to specify JPEG quality.
$encoder_param = $hint_set->CreateDict();
// The following is a code snippet shows how to selectively render
// and export PDF layers.
$doc = new PDFDoc($output_path . "pdf_layers.pdf");
$doc->InitSecurityHandler();
if (!$doc->HasOC()) {
echo nl2br("The document does not contain 'Optional Content'\n");
} else {
$init_cfg = $doc->GetOCGConfig();
$ctx = new Context($init_cfg);
$pdfdraw = new PDFDraw();
$pdfdraw->SetImageSize(1000, 1000);
$pdfdraw->SetOCGContext($ctx);
// Render the page using the given OCG context.
$page = $doc->GetPage(1);
// Get the first page in the document.
$pdfdraw->Export($page, $output_path . "pdf_layers_default.png");
// Disable drawing of content that is not optional (i.e. is not part of any layer).
$ctx->SetNonOCDrawing(false);
// Now render each layer in the input document to a separate image.
$ocgs = $doc->GetOCGs();
// Get the array of all OCGs in the document.
if ($ocgs != null) {
$sz = $ocgs->Size();
for ($i = 0; $i < $sz; ++$i) {
$ocg = new Group($ocgs->GetAt($i));
$ctx->ResetStates(false);
$ctx->SetState($ocg, true);
$fname = $output_path . "pdf_layers_" . $ocg->GetName() . ".png";
echo nl2br($fname . "\n");
$pdfdraw->Export($page, $fname);
}
