With the deepening of information technology, most enterprises have basically realized online office, so a large number of word and excel documents need to be transmitted on the network in their daily work, so it is very important to ensure the security of document information during transmission. The popularization and application of electronic signature technology not only solves the problems of integrity, authenticity and reliability of data information, but also promotes the informatization process of enterprises to some extent. So how to operate the electronic signature of word and excel documents? The following article mainly explains the use of electronic signature in office software, which is convenient for users to use better.

1, make a sample file of electronic signature. One, registered as a member of Peng Yucheng can apply for free electronic signature samples. The storage method can be file storage or smart card storage. The former needs to be stored in a personal computer for electronic signature, and the latter needs to write this file into a personal smart card. Only the card can be inserted for electronic signature. Signature verification supports smart card verification and allows users to cancel, re-sign and delete their signatures.

For digital certificate verification and signature, CA certificate chain and user certificate should be installed on the client. If smart cards are used, drivers related to smart cards should be installed. (This is for enterprise users, not for individual users. )

3. Open the Word document that needs to be signed, move the cursor to the position that needs to be signed, and click "Electronic Signature" on the toolbar.

Reading signature file from disk means reading signature sample file from disk, and reading signature file from smart card means reading signature sample file from smart card memory.

The Content Lock is set to determine whether the document content is allowed to be changed. If selected, once the document content is modified, the signature will be invalid, otherwise whether the document content changes will not affect the validity of the signature, that is, the signature status is always "content independent". Write protection and print protection are the types of protection options for documents.

If the password is correct, find the corresponding digital certificate in the local personal certificate library or smart card and submit it to the identity authentication center to verify the validity information of the certificate. If the verification is successful, you can sign it. The operation prompt button will provide simple operation prompt help. After clicking the "OK" button, the signature will be inserted at the specified location. At this time, the electronic signature in the inserted document can be selected, moved and scaled, but the electronic signature will be locked after verification, and the locked electronic signature cannot be selected, moved or scaled again.

4. The electronic signature of 4.excel form is the same as that of word document. Please note that after inserting an electronic signature into a form, operations such as selecting, moving and scaling the signature are not allowed.

5. For documents with electronic signatures inserted in them, signature management can be performed. Click "Electronic Signature" in the document with electronic signature, and the signature list will pop up. You can add, cancel, re-sign and delete the signature.