View Changes and Revision History using PDFfiller PHP Client

PDFfiller allows you to track all the editing activity in your PDF documents. The versions of your edited documents are automatically saved and you can easily browse through any of them and use the version you like most.
          
              
                    PDFfiller\OAuth2\Client\Provider\Document::createConstructor();

$document = Document::one($provider, 12345678);

$hashDocument = $document->createConstructor();