Search & Replace Text inside PDF Files in PHP Applications

				This technical tip allows developers to replace text in a PDF file using Saaspose Pdf REST API in your PHP applications. Saaspose.Pdf also converts PDF file to DOC, DOCX, HTML, XPS, TIFF etc. You can create a new PDF either from scratch or from HTML, XML, template, database, XPS or an image. Some important steps for performing this task are, enter App SID and App key, build URI, browse pdf file, enter old text, enter new text, Build URI to replace text, Save PDF file on server, Sign remote URI, Send request and get status in the response, Specify remote URI to get replace text in PDF file and Save output stream to disk.
Sample Code for Replacing Text in a PDF File
$filePath = getcwd() . "\\Input\\MyFile.pdf";
$fileName = basename($filePath);
$oldText = "old text here";
$newText = "new text here";
//set application information
$AppSID = "77**************";
$AppKey = "89***********";
	
//build URI
echo "Uploading pdf file... 
";
$strURIRequest = "http://api.saaspose.com/v1.0" . "/storage/file/" . $fileName;
$signedURI = Sign($strURIRequest);
uploadFileBinary($signedURI, $filePath); 
echo "Pdf file has been uploaded successully 
";
echo "Replacing text...
";
//Build JSON to post
$fieldsArray = array('OldValue'=>$oldText, 'NewValue'=>$newText, 'Regex'=>"false");
$json = json_encode($fieldsArray);
//Build URI to replace text
$strURI = "http://api.saaspose.com/v1.0" . "/pdf/" . $fileName . "/replaceText";
$signedURI = Sign($strURI);
$responseStream = processCommand($signedURI, "POST", "json", $json);
$v_output = ValidateOutput($responseStream);
if ($v_output === "")
{
//Save PDF file on server
//build URI
$strURI = "http://api.saaspose.com/v1.0" . "/storage/file/" . $fileName;
//sign URI
$signedURI = Sign($strURI);
$responseStream = processCommand($signedURI, "GET", "", "");
$outputPath = getcwd() . "\\output\\" . $fileName;
saveFile($responseStream, $outputPath);
echo "The text has been replaced and Pdf file has saved at: " . $outputPath;
} 
else 
return $v_output;
More about Saaspose.Pdf
- Homepage of Saaspose.Pdf: http://saaspose.com/api/pdf 
- More Technical Tips by Saaspose.Pdf: http://saaspose.com/docs/display/pdf/1.2+-+Saaspose.Pdf+Examples