Before starting to work with your client, make sure he/she has not changed any conditions or prices in your electronic document. We have developed a special online service which allows you to validate the integrity of the signed document.
Scan the QR code from the certificate of completion with your smartphone or tablet, then upload your final PDF document to the special field.
To check a document from your computer, copy the link to the Bitrix24.Sign service and enter it in the address bar of a browser.
After scanning the document, you will get the results and see whether the client modified the file or not.
