How to convert images to PDF from uploaded files for image to PDF API in PHP and PDF.co Web API

PDF.co Web API: the flexible Web API that includes full set of functions from e-signature requests to data extraction, OCR, images recognition, pdf splitting and pdf splitting. Can also generate barcodes and read barcodes from images, scans and pdf.

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image-to-pdf.php

      
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Image To PDF Conversion Results</title> </head> <body> <?php // Note: If you have input files large than 200kb we highly recommend to check "async" mode example. // Get submitted form data $apiKey = $_POST["apiKey"]; // The authentication key (API Key). Get your own by registering at https://pdf.co // 1. UPLOAD FILES TO CLOUD // If you already have direct file links, skip to Step 2. $uploadedFiles = array(); $fileCount = count($_FILES["files"]["name"]); for($i = 0; $i < $fileCount; $i++) { // 1a. RETRIEVE THE PRESIGNED URL TO UPLOAD THE FILE. // Create URL $url = "https://api.pdf.co/v1/file/upload/get-presigned-url" . "?name=" . urlencode($_FILES["files"]["name"][$i]) . "&contenttype=application/octet-stream"; // Create request $curl = curl_init(); curl_setopt($curl, CURLOPT_HTTPHEADER, array("x-api-key: " . $apiKey)); curl_setopt($curl, CURLOPT_URL, $url); curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); // Execute request $result = curl_exec($curl); if (curl_errno($curl) == 0) { $status_code = curl_getinfo($curl, CURLINFO_HTTP_CODE); if ($status_code == 200) { $json = json_decode($result, true); // Get URL to use for the file upload $uploadFileUrl = $json["presignedUrl"]; // Get URL of uploaded file to use with later API calls $uploadedFileUrl = $json["url"]; // 1b. UPLOAD THE FILE TO CLOUD. $tmpFilePath = $_FILES["files"]["tmp_name"][$i]; $fileHandle = fopen($tmpFilePath, "r"); curl_setopt($curl, CURLOPT_URL, $uploadFileUrl); curl_setopt($curl, CURLOPT_HTTPHEADER, array("content-type: application/octet-stream")); curl_setopt($curl, CURLOPT_PUT, true); curl_setopt($curl, CURLOPT_INFILE, $fileHandle); curl_setopt($curl, CURLOPT_INFILESIZE, filesize($tmpFilePath)); // Execute request curl_exec($curl); if (curl_errno($curl) == 0) { $status_code = curl_getinfo($curl, CURLINFO_HTTP_CODE); if ($status_code == 200) { $uploadedFiles[] = $uploadedFileUrl; } else { // Display request error echo "<p>Uploading File Status code: " . $status_code . " : " . $uploadedFileUrl . "</p>"; echo "<p>error status for uploading files (1 means error related to php.ini config or tmp folder permissions): " . $_FILES['files']['error'] . "</p>"; echo "<p>" . $result . "</p>"; } } else { // Display CURL error echo "cURL Error: " . curl_error($curl); } fclose($fileHandle); } else { // Display request error echo "<p>Error Uploading: Status code: " . $status_code . "</p>"; echo "<p>" . $result . "</p>"; } } else { // Display CURL error echo "cURL Error: " . curl_error($curl); } curl_close($curl); } // 2. CREATE PDF DOCUMENT FROM UPLOADED IMAGE FILES if (count($uploadedFiles) > 0) { ImageToPdf($apiKey, $uploadedFiles); } function ImageToPdf($apiKey, $uploadedFiles) { // Create URL $url = "https://api.pdf.co/v1/pdf/convert/from/image"; // Prepare requests params $parameters = array(); $parameters["name"] = "result.pdf"; $parameters["url"] = join(",", $uploadedFiles); // Create Json payload $data = json_encode($parameters); // Create request $curl = curl_init(); curl_setopt($curl, CURLOPT_HTTPHEADER, array("x-api-key: " . $apiKey, "Content-type: application/json")); curl_setopt($curl, CURLOPT_URL, $url); curl_setopt($curl, CURLOPT_POST, true); curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); curl_setopt($curl, CURLOPT_POSTFIELDS, $data); // Execute request $result = curl_exec($curl); if (curl_errno($curl) == 0) { $status_code = curl_getinfo($curl, CURLINFO_HTTP_CODE); if ($status_code == 200) { $json = json_decode($result, true); if ($json["error"] == false) { $resultFileUrl = $json["url"]; // Display link to the file with conversion results echo "<div>## Conversion Result:<a href='" . $resultFileUrl . "' target='_blank'>" . $resultFileUrl . "</a></div>"; } else { // Display service reported error echo "<p>PDF.co API execution Error: " . $json["message"] . "</p>"; } } else { // Display request error echo "<p>API Call Status code: " . $status_code . ": " . $url . "</p>"; echo "<p>" . $result . "</p>"; } } else { // Display CURL error echo "cURL Error 2: " . curl_error($curl); } // Cleanup curl_close($curl); } ?> </body> </html>

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