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(PHP Extension) Add File Attachments to a PDFSee more PDF Signatures ExamplesDemonstrates how to attach files to a PDF. This is also known as embedding a file within a PDF. Note: This example requires Chilkat v9.5.0.97 or greater.
<?php include("chilkat_9_5_0.php"); // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. $pdf = new CkPdf(); // We'll be adding attachments to this PDF file.. // Note: We are loading the PDF file into memory. The PDF file is not kept open at this point. $success = $pdf->LoadFile('qa_data/pdf/helloWorld.pdf'); if ($success == false) { print $pdf->lastErrorText() . "\n"; exit; } // Note: The ability to attach files to a PDF was added in Chilkat v9.5.0.97 // Build JSON to provide information about the files to be embedded in the PDF. $json = new CkJsonObject(); $json->put_EmitCompact(false); $i = 0; // We can attach multiple files in one operation. // Here we specify the local relative file path of the 1st file to be embedded. $json->put_I($i); $json->UpdateString('files[i].description','Hello World'); $json->UpdateString('files[i].localFilePath','qa_data/xml/helloWorld.xml'); $i = $i + 1; // Specify the 2nd file to be attached. $json->put_I($i); $json->UpdateString('files[i].description','Image of starfish'); $json->UpdateString('files[i].localFilePath','qa_data/jpg/starfish.jpg'); // You can explicitly specify the subType (i.e. MIME type) of the file. // Otherwise Chilkat will use the default MIME type based on the filename extension. // If no default MIME type exists, then "application/octet-stream" is used. $json->UpdateString('files[i].subType','image/jpeg'); $i = $i + 1; // You can alternatively provide the file data from base64 encoded data rather than from a local file. $json->put_I($i); $json->UpdateString('files[i].description','Hello World from Data'); $json->UpdateString('files[i].fileData','SGVsbG8gV29ybGQsIEhlbGxvIFdvcmxkLCBIZWxsbyBXb3JsZCwgSGVsbG8gV29ybGQsIEhlbGxvIFdvcmxk'); $json->UpdateString('files[i].embeddedFilename','abc.txt'); $i = $i + 1; // By default, the filename used within the PDF is the filename part of the local file path. // You can change it by specifying the embeddedFilename. $json->put_I($i); $json->UpdateString('files[i].description','Invoice'); $json->UpdateString('files[i].localFilePath','qa_data/xml/invoice.xml'); $json->UpdateString('files[i].embeddedFilename','invoice_1234.xml'); $json->UpdateString('files[i].subType','application/xml'); // The above JSON provides instructions for attaching 4 files to the PDF. // Let's attach the files.. // It is perfectly acceptable to write over the PDF file that was loaded, // but in this example we'll write the PDF with attachments to a new PDF file. $success = $pdf->AddEmbeddedFiles($json,'qa_output/helloWorld_withAttachments.pdf'); if ($success == false) { print $pdf->lastErrorText() . "\n"; exit; } // You can alternatively write the PDF file with attachments to a Chilkat BinData object.. $bd = new CkBinData(); $success = $pdf->AddEmbeddedFilesBd($json,$bd); if ($success == false) { print $pdf->lastErrorText() . "\n"; exit; } // Then you can do what you want with the BinData, which contains the binary image of the PDF with attachments. print 'Success.' . "\n"; ?> |
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