How to convert PDF to text asynchronously for PDF to text API in PHP and PDF.co Web API

Learn how to convert PDF to text asynchronously to have PDF to text API in PHP

Here you may find thousands pre-made source code pieces for easy implementation in your own programming projects. PDF.co Web API helps with PDF to text API in PHP. PDF.co Web API is the Web API with a set of tools for documents manipulation, data conversion, data extraction, splitting and merging of documents. Includes image recognition, built-in OCR, barcode generation and barcode decoders to decode bar codes from scans, pictures and pdf.

You will save a lot of time on writing and testing code as you may just take the code below and use it in your application. Open your PHP project and simply copy & paste the code and then run your app! This basic programming language sample code for PHP will do the whole work for you in implementing PDF to text API in your app.

PDF.co Web API – free trial version is on available our website. Also, there are other code samples to help you with your PHP application included into trial version.

On-demand (REST Web API) version:
 Web API (on-demand version)

On-premise offline SDK for Windows:
 60 Day Free Trial (on-premise)

pdf-to-text-async.php
      
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Cloud API asynchronous "PDF To Text" job example.</title> </head> <body> <?php // Cloud API asynchronous "PDF To Text" job example. // Allows to avoid timeout errors when processing huge or scanned PDF documents. // The authentication key (API Key). // Get your own by registering at https://app.pdf.co/documentation/api $apiKey = "***********************************"; // Direct URL of source PDF file. Check another example if you need to upload a local file to the cloud. $sourceFileUrl = "https://bytescout-com.s3.amazonaws.com/files/demo-files/cloud-api/pdf-to-text/long-processed-document.pdf"; // Comma-separated list of page indices (or ranges) to process. Leave empty for all pages. Example: '0,2-5,7-'. $pages = ""; // PDF document password. Leave empty for unprotected documents. $password = ""; // Prepare URL for `PDF To TXT` API call $url = "https://api.pdf.co/v1/pdf/convert/to/text" . "?url=" . $sourceFileUrl . "&password=" . $password . "&pages=" . $pages . "&async=true"; // (!) Make asynchronous job // 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); if ($json["error"] == false) { // URL of generated TXT file that will available after the job completion $resultFileUrl = $json["url"]; // Asynchronous job ID $jobId = $json["jobId"]; // Check the job status in a loop do { $status = CheckJobStatus($jobId); // Possible statuses: "working", "failed", "aborted", "success". // Display timestamp and status (for demo purposes) echo "<p>" . date(DATE_RFC2822) . ": " . $status . "</p>"; if ($status == "success") { // Display link to the file with conversion results echo "<div><h2>Conversion Result:</h2><a href='" . $resultFileUrl . "' target='_blank'>" . $resultFileUrl . "</a></div>"; break; } else if ($status == "working") { // Pause for a few seconds sleep(3); } else { echo $status . "<br/>"; break; } } while (true); } else { // Display service reported error echo "<p>Error: " . $json["message"] . "</p>"; } } else { // Display request error echo "<p>Status code: " . $status_code . "</p>"; echo "<p>" . $result . "</p>"; } } else { // Display CURL error echo "Error: " . curl_error($curl); } // Cleanup curl_close($curl); function CheckJobStatus($jobId) { $status = null; // Create URL $url = "https://api.pdf.co/v1/job/check?jobid=" . $jobId; // 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); if ($json["error"] == false) { $status = $json["status"]; } else { // Display service reported error echo "<p>Error: " . $json["message"] . "</p>"; } } else { // Display request error echo "<p>Status code: " . $status_code . "</p>"; echo "<p>" . $result . "</p>"; } } else { // Display CURL error echo "Error: " . curl_error($curl); } // Cleanup curl_close($curl); return $status; } ?> </body> </html>

ON-PREMISE OFFLINE SDK

60 Day Free Trial or Visit PDF.co Web API Home Page

Explore PDF.co Web API Documentation

Explore Samples

Sign Up for PDF.co Web API Online Training

ON-DEMAND REST WEB API

Get Your API Key

Explore Web API Docs

Explore Web API Samples

VIDEO

ON-PREMISE OFFLINE SDK

60 Day Free Trial or Visit PDF.co Web API Home Page

Explore PDF.co Web API Documentation

Explore Samples

Sign Up for PDF.co Web API Online Training

ON-DEMAND REST WEB API

Get Your API Key

Explore Web API Docs

Explore Web API Samples

Related Samples: