Adobe fillable pdf web and mobile sdk/api/dll

Hello Sir,

I have a specific requirement for my web application where I need to provide the option to fill pdf forms partially on web/android/ios platforms. Like there is a scenario where the user has filled up his information in pdf and submit it. Later admin will fill company info, review the form and sign it and then save it as pdf.

I am not able to achieve fillable pdf option once user filled partial info.

I am looking for such solution for php, android and iOS platforms.

Please let me know if you have such solution for the same and share the pricing too for the solution.

Regards,

Shashank gupta