I can't delete the signatures

Hello ​@Mathieu15 

I hope you are doing well, and thanks for reaching out. We’re sorry for the trouble you had.

From the above message, I assume the issue was temporary, and it is fixed now.

Please feel free to reach out if you need any assistance. For future reference, you can refer to this article: https://www.adobe.com/acrobat/hub/cant-remove-signature-from-pdf.html

Regards,

Anand Sri.