You won't be able to use a certification signature for what you want to do. Only one is allowed in the document, and it has to be the first digital signature in the document.
If you place multiple digital signature fields, users will be able to sign them when needed and certain changes to the document are allowed throughout the workflow (e.g., form filling) without invalidating the previous signatures. The document can be locked to further changes when the last unsigned signature field is signed.
Indeed it worked.
Related to this, do you think it is possible to :
- Allow only a definite list of users to sign a field ?
- Edit a script to automatically overwrite the previous file, when signing, without showing the "save as" command ?
Thank you very much for your help