How to Sign an Envelope (Qualified Electronic Signature)

This document explains how to sign documents with QES, sign multiple documents in one flow, download signed files, and check signature validity.

To sign a document, the envelope must contain at least one signature field.

How to sign an envelope using QES

1. In the Required signatures block:

   • Click the QES signature button.

   • Or click the Pencil icon, open the target field, and select the QES signature field.

1. In the Sign the documents window, open the signature type list and select an available QES method.

Available signing methods depend on the configured signature providers. The verification and signing flow may differ for file-based keys, USB tokens, cloud signatures, and QR-based signatures.

1. Scan the QR code and confirm the verification operation in Vchasno.QES. After confirmation, return to this page.

1. Review the certificate details and click Next.

1. Review the list of documents you are going to sign. Keep Sign all documents selected to sign all available XML and PDF versions, then click Sign.

The document list includes:

• A human-readable PDF version.

• An XML version with structured document data.

1. Scan the QR code and confirm the signing operation in Vchasno.QES. Return to this page and wait until the signing process is completed.

1. After the signing window closes, review the updated signature status in the Required signatures block.

2. Click a signed field to view who signed the document and when.

3. Sign all documents assigned to your role. Then click Send to complete the signing flow.

If needed, you can also apply a stamp. Use I want to choose stamp on the second signing step.

How to sign all documents in an envelope

You can sign all eligible documents in one flow.

1. Follow the signing flow until you reach the documents list.

2. If more than one document is available, select Sign all documents.

3. Review the full list of documents available for signing.

4. Continue the signing flow to sign all documents from the list.

Click Send after the last signing step. Otherwise, the signing action is not saved.

How to download signed documents

You can download signed documents only after all participants with the Signer role complete their steps.

1. Make sure the envelope is completed.

2. Open the envelope.

3. Click the Download button in the header to download the full envelope archive.

4. Or click the Download button next to a document name to download that document with its signatures.

After you click the download button, the archive downloads automatically.

How to check signature validity

To validate the signature:

1. Download the archive with the signed document and signature files.

2. Open the CZO verification service.

3. Select the .p7s file and the signed document.

4. Click Check.

After validation is complete, review the result.