A document integrity check ensures a file hasn’t been altered after signing. For example, if a customer signs an agreement, you can confirm that the terms haven’t changed.
Bitrix24 e-Signature offers a built-in service for this. Each signed document comes with a certificate of completion that proves it hasn’t been altered.
You can check document integrity on both your computer and mobile device.
To check a document for changes:
- Go to https://sign.bitrix24.com/verify/.
 - Upload the document you want to check.
 - Review the verification results.
 - Click Add document to check more files.
 
To check a document for changes:
- Scan the QR code on the certificate of completion with your smartphone.
 - Upload the document you want to check.
 - Review the verification results.
 - Tap Add document to check more files.
 
In brief
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A document integrity check ensures a file hasn’t been altered after signing. Bitrix24 e-Signature offers a built-in service for this.
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Each signed document comes with a certificate of completion that proves it hasn’t been altered.
 - 
	
You can check document integrity on both your computer and mobile device.
 - 
	
If the document was changed after signing, the service will notify you. You can then ask the customer for details about the changes.