break; } } } // Initialize PDFNet PDFNet::Initialize(); // Example 1: // Extract images by traversing the display list for // every page. With this approach it is possible to obtain // image positioning information and DPI. $doc = new PDFDoc($input_path . "newsletter.pdf"); $doc->InitSecurityHandler(); $reader = new ElementReader(); // Read every page for ($itr = $doc->GetPageIterator(); $itr->HasNext(); $itr->Next()) { $reader->Begin($itr->Current()); ImageExtract($reader); $reader->End(); } $doc->Close(); echo nl2br("Done...\n"); echo nl2br("----------------------------------------------------------------\n"); // Example 2: // Extract images by scanning the low-level document. $doc = new PDFDoc($input_path . "newsletter.pdf"); $doc->InitSecurityHandler(); $image_counter = 0; $cos_doc = $doc->GetSDFDoc(); $num_objs = $cos_doc->XRefSize(); for ($i = 1; $i < $num_objs; ++$i) { $obj = $cos_doc->GetObj($i);
// Finish the block of text $writer->WriteElement($builder->CreateTextEnd()); // Draw an image that will be clipped by the above text $writer->WriteElement($builder->CreateImage($img, 10.0, 100.0, 1300.0, 720.0)); $writer->End(); // save changes to the current page $doc->PagePushBack($page); // Start a new page ------------------------------------ // // The example illustrates how to embed the external font in a PDF document. // The example also shows how ElementReader can be used to copy and modify // Elements between pages. $reader = new ElementReader(); // Start reading Elements from the last page. We will copy all Elements to // a new page but will modify the font associated with text. $reader->Begin($doc->GetPage($doc->GetPageCount())); $page = $doc->PageCreate(new Rect(0.0, 0.0, 1300.0, 794.0)); $writer->Begin($page); // begin writing to this page $builder->Reset(); // Reset the GState to default // Embed an external font in the document. $font = Font::CreateTrueTypeFont($doc->GetSDFDoc(), $input_path . "font.ttf"); while (($element = $reader->Next()) != null) { if ($element->GetType() == Element::e_text) { $element->GetGState()->SetFont($font, 12); } $writer->WriteElement($element); } $reader->End(); $writer->End();
$file_sz = $file->FileSize(); $file_reader = new FilterReader($file); $mem = $file_reader->Read($file_sz); $test = array(); for ($i = 0; $i < strlen($mem); $i++) { $test[] = ord($mem[$i]); } $doc = new PDFDoc($mem, $file_sz); $doc->InitSecurityHandler(); $num_pages = $doc->GetPageCount(); $writer = new ElementWriter(); $reader = new ElementReader(); // Create a duplicate of every page but copy only path objects for ($i = 1; $i <= $num_pages; ++$i) { $itr = $doc->GetPageIterator(2 * $i - 1); $reader->Begin($itr->Current()); $new_page = $doc->PageCreate($itr->Current()->GetMediaBox()); $next_page = $itr; $next_page->Next(); $doc->PageInsert($next_page, $new_page); $writer->Begin($new_page); while (($element = $reader->Next()) != null) { //if ($element->GetType() == Element::e_path) $writer->WriteElement($element); } $writer->End(); $reader->End(); } $doc->Save($output_path . "doc_memory_edit.pdf", SDFDoc::e_remove_unused); // Save the document to a memory buffer. $buffer = $doc->Save(SDFDoc::e_remove_unused);
$writer->WriteElement($element); } } } PDFNet::Initialize(); echo nl2br("-------------------------------------------------\n"); // Open the test file echo nl2br("Opening the input file...\n"); $doc = new PDFDoc($input_path . $input_filename); $doc->InitSecurityHandler(); $writer = new ElementWriter(); $reader = new ElementReader(); $itr = $doc->GetPageIterator(); while ($itr->HasNext()) { $page = $itr->Current(); $reader->Begin($page); $writer->Begin($page, ElementWriter::e_replacement, false); $map1 = array(); ProcessElements($reader, $writer, $map1); $writer->End(); $reader->End(); $map2 = array(); while (!(empty($map1) && empty($map2))) { foreach ($map1 as $k => $v) { $obj = $v; $writer->Begin($obj); $reader->Begin($obj, $page->GetResourceDict()); ProcessElements($reader, $writer, $map2); $reader->End(); $writer->End(); unset($map1[$k]);