Cloud API – PDF Information – PHP – Get PDF Info From Uploaded File

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Cloud API – PDF Information – PHP – Get PDF Info From Uploaded File

get-pdf-info.php

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>PDF Information Results</title>
</head>
<body>

<?php 

// Get submitted form data
$apiKey = $_POST&#91;"apiKey"&#93;; // The authentication key (API Key). Get your own by registering at https://secure.bytescout.com/users/sign_up


// 1. RETRIEVE THE PRESIGNED URL TO UPLOAD THE FILE.
// * If you already have the direct PDF file link, go to the step 3.

// Create URL
$url = "https://bytescout.io/v1/file/upload/get-presigned-url" . 
    "?name=" . $_FILES&#91;"file"&#93;&#91;"name"&#93; .
    "&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&#91;"presignedUrl"&#93;;
        // Get URL of uploaded file to use with later API calls
        $uploadedFileUrl = $json&#91;"url"&#93;;
        
        // 2. UPLOAD THE FILE TO CLOUD.
        
        $localFile = $_FILES&#91;"file"&#93;&#91;"tmp_name"&#93;;
        $fileHandle = fopen($localFile, "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($localFile));

        // Execute request
        curl_exec($curl);
        
        fclose($fileHandle);
        
        if (curl_errno($curl) == 0)
        {
            $status_code = curl_getinfo($curl, CURLINFO_HTTP_CODE);
            
            if ($status_code == 200)
            {
                // 3. GET INFORMATION ABOUT UPLOADED PDF DOCUMENT
                
                ExtractInfo($apiKey, $uploadedFileUrl, $pages);
            }
            else
            {
                // Display request error
                echo "<p>Status code: " . $status_code . "</p>"; 
                echo "<p>" . $result . "</p>"; 
            }
        }
        else
        {
            // Display CURL error
            echo "Error: " . curl_error($curl);
        }
    }
    else
    {
        // Display service reported error
        echo "<p>Status code: " . $status_code . "</p>"; 
        echo "<p>" . $result . "</p>"; 
    }
    
    curl_close($curl);
}
else
{
    // Display CURL error
    echo "Error: " . curl_error($curl);
}

function ExtractInfo($apiKey, $uploadedFileUrl) 
{
    // Create URL
    $url = "https://bytescout.io/v1/pdf/info?url=" . $uploadedFileUrl;
    
    // 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_POST, true);
    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)
            {
                $documentInfo = $json["info"];

                // Display the document info
                echo "<div><h2>Document Info:</h2><p>";
                foreach ($documentInfo as $key => $value) 
                {
                    echo $key . ' = ' . $value . '<br/>';
                }
                echo "</p></div>";
            }
            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);
    }
}

?>

</body>
</html>

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