Convert PDF To Image From Uploaded File - PHP
PDF to PNG sample in PHP demonstrating ‘Convert PDF To Image From Uploaded File’
pdf-to-image.php
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>PDF To Image 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://app.pdf.co
$outputFormat = $_POST["outputFormat"];
$pages = $_POST["pages"];
// 1. RETRIEVE THE PRESIGNED URL TO UPLOAD THE FILE.
// * If you already have a direct PDF file link, go to the step 3.
// Create URL
$url = "https://api.pdf.co/v1/file/upload/get-presigned-url" .
"?name=" . urlencode($_FILES["file"]["name"]) .
"&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
$accessFileUrl = $json["url"];
// 2. UPLOAD THE FILE TO CLOUD.
$localFile = $_FILES["file"]["tmp_name"];
$fileHandle = fopen($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))
{
// Display request error
echo "Error: " . curl_error($curl);
}
else
{
$status_code = curl_getinfo($curl, CURLINFO_HTTP_CODE);
if ($status_code == 200)
{
// 3. CONVERT PDF TO IMAGE
RenderPDF($apiKey, $accessFileUrl, $outputFormat, $pages);
}
else
{
// Display service reported error
echo "<p>Status code: " . $status_code . "</p>";
echo "<p>" . $result . "</p>";
}
}
}
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($curl);
}
function RenderPDF($apiKey, $fileUrl, $outputFormat, $pages)
{
$formats = array(0 => "png", 1 => "jpg", 2 => "tiff");
$format = $formats[$outputFormat];
// Create URL
$url = "https://api.pdf.co/v1/pdf/convert/to/" . $format;
// Prepare requests params
$parameters = array();
$parameters["url"] = $fileUrl;
$parameters["pages"] = $pages;
// 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 (!isset($json["error"]) || $json["error"] == false)
{
if ($format == "tiff")
{
// The TIFF format is multi-page, so the result is always the single file
$resultFileUrl = $json["url"];
echo "<p><a href=" . $resultFileUrl . ">" . $resultFileUrl . "</p>";
}
else
{
// JPEG and PNG formats are single-page, so the results are multiple
$resultFiles = $json["urls"];
foreach ($resultFiles as &$resultFileUrl)
echo "<p><a href=" . $resultFileUrl . ">" . $resultFileUrl . "</p>";
}
}
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>
sample.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>PDF To Image Cloud API Example</title>
</head>
<body>
<form name="form1" enctype="multipart/form-data" method="post" action="pdf-to-image.php">
<p>
<label>Authentication key (API Key). Get your own by registering at <a href="https://apidocs.pdf.co">https://apidocs.pdf.co</a>.</label>
<br/>
<input type="text" name="apiKey" placeholder="API Key"/>
</p>
<p>
<label>Input File (*.pdf)</label>
<input type="hidden" name="MAX_FILE_SIZE" value="8000000"/>
<input type="file" name="file"/>
</p>
<p>
<label>Convert to</label>
<select name="outputFormat">
<option value="0" selected="selected">PNG</option>
<option value="1">JPEG</option>
<option value="2">TIFF</option>
</select>
</p>
<p>
<label>Comma-separated list of page indices (or ranges) to process. Leave empty for all pages. Example: '0,2-5,7-'.</label>
<input type="text" name="pages">
</p>
<input type="submit" name="submit" value="Proceed" />
</form>
</body>
</html>
PDF.co Web API: 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.