Digital Signature Project in PHP

I am looking for a skilled PHP developer to help me with a Digital Signature Project. The purpose of this project is to verify the identity of individuals or entities. Skills and Experience: - Proficient in PHP programming - Familiarity with digital signature protocols and technologies - Experience in implementing medium-level security measures - Knowledge of encryption and data security - Ability to work without a specific PHP framework in mind Project Requirements: - Customer can be an Individual or an Organisation - Customer can Upload a documents - After Upload document, the document display inside the webpage as document viewer. Page can be single or multiple pages - There is a Drag and Drop Option for Signature - Client can Drag the Signature Filed multiple times in multiple pages - After Specifying the Signature Field , in next step, it will ask to verify the document using verious digital signature method. - Digital Signaturing will be three type: 1. OTP Based - Every user give their kyc document including the Signature Scan copy to us. So, when use prefer OTP based sign, the Scanned signature will pasted in Signature Section 2. AADHAR Based - If an User Select Aadhar based signature, developer should Aadhar Api to Sign the Documents. Once document signed, a PDF signed document can be generate but the pdf will be dynamic in nature and a question mark will display over the signature. When the receiver click on the question mark, it will verify and a green check mark will display. 3. DSC USB Token - If an User Selected DSC Token Sign, it will ask to use the Token such as eMudra, Pantasign and many more. After Signature, a Dynamic PDF will generate and in specified Signature section, Signature person details will display and also a question mark will display over the details and if someone click on it, it will be green check. For example, you can find it Company Registration MoA and AoA where director use DSC token to Authorize the Documents. If you are a PHP developer with experience in digital signature projects and medium-level security measures, I would love to discuss this project further with you. Please provide examples of your previous work in this area.