How to PDF Create Fillable PDF Forms for Fillable PDF Forms in PHP and PDF.co Web API

What is PDF.co Web API? It is the REST API that provides a set of data extraction functions, tools for document manipulation, splitting and merging of PDF files. Includes built-in OCR, image recognition, it can generate and read barcodes from images, scans and PDF.

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fillable-pdf-forms.php

      
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>PDF Create Fillable PDF Forms - Result</title>
</head>
<body>

<?php 

// Get submitted form data
$apiKey = $_POST["apiKey"]; // The authentication key (API Key). Get your own by registering at https://app.pdf.co/documentation/api

// Prepare URL for HTML to PDF API call
$url = "https://api.pdf.co/v1/pdf/edit/add";

// Prepare requests params
// See documentation: https://apidocs.pdf.co
$parameters = array();

// Direct URL of source PDF file.
$parameters["url"] = "https://bytescout-com.s3-us-west-2.amazonaws.com/files/demo-files/cloud-api/pdf-edit/sample.pdf";

// Name of resulting file
$parameters["name"] = "newDocument";

// If large input document, process in async mode by passing true
$parameters["async"] = false;

// Annotations Strings
$annotations =   '[{
    "text":"sample prefilled text",
    "x": 10,
    "y": 30,
    "size": 12,
    "pages": "0-",
    "type": "TextField",
    "id": "textfield1"
},
{
    "x": 100,
    "y": 150,
    "size": 12,
    "pages": "0-",
    "type": "Checkbox",
    "id": "checkbox2"
},
{
    "x": 100,
    "y": 170,
    "size": 12,
    "pages": "0-",
    "link": "https://bytescout-com.s3-us-west-2.amazonaws.com/files/demo-files/cloud-api/pdf-edit/logo.png",
    "type": "CheckboxChecked",
    "id":"checkbox3"
}]';// JSON string

// Convert JSON string to Array
$annotationsArray = json_decode($annotations, true);

$parameters["annotations"] = $annotationsArray;

// 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><h2>Result:</h2><a href='" . $resultFileUrl . "' target='_blank'>" . $resultFileUrl . "</a></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);
}

// Cleanup
curl_close($curl);

?>

</body>
</html>

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