Add pkcs7 signature in pdf file

Hi, I have 10 years experience in digital signature. I have created many apps, service, web service,.. to sign pdf document. I understand your case, what we need to do is: 1. Calculate hash value from original Pdf document 2. Calculate signature from the hash value (maybe you will send the hash value to other service to calculate signature or you can do it yourself) -> this is pkcs#7 signature. 3. Embeled(add) the signature (pkcs#7) into original pdf document (in step 1) to create signed pdf With my experience and I have completed projects like this, so I think I can help you complete the project fastest. Please check my profile, I have completed many projects about digital signature in the Freelancer. https://www.freelancer.com/u/tuantag Contact me if you interested! Thanks for reading!

Hello Recruiter, I’ve carefully checked your project " WEBSITE DEVELOPMENT and really interested in this job. I have better skill in Web developing. I am hard working and positive attitude man. I work with focus and dedication. I have better understanding in databases, programming languages and scriptive languages. I will do my best to finish all your projects perfectly within your affordable rate and timeline. I assure you that the website will be according to your requirements and also timely support and daily updates are provided by me. I have knowledge about: Objective C, Swift, Xcode, Script, Android studio, Sqlite, cloud services, firebase, in-app purchase, payment gateways, Google API integration, third-party API integration, UI, UX, PHP, SIP, MNV, MVVC, CBD modeling, XML, Angular JS, Jquery, SQL Server, HTML 5, CSS3, JAVA, API, Backend Admin panel, Cocoa-pods, SDK, NDK, Core and many more. If interested, send me message here on freelancer. looking forward to hearing from you. THANKS & REGARDS VIP GEOS

Hello there I am experienced and passionate for .Add pkcs7 signature in pdf file ... I specialize in all kind of graphic design I can provide you with brilliant concept to improve your business and can show you samples of my previous work. Hope to hear from you soon. Please have a look to my earlier projects https://www.freelancer.in/u/irakhan088?w=f&ngsw-bypass= Thank you I look forward to hear from you Ira :)

Hi, I'm Cristian, partner, I can do this right now if you contact me with the lowest rate because I'm really interested in doing that job.

This is Avik. I found your description regarding your requirement. By good luck, it directly reflect to my skills and experience consisting of Photoshop, Logo Design and Illustrator. So my work will definitely amaze you and you will be glad to work with me, let's get on chat to discuss further details. Further more I will provide all the professional design files like AI, JPG, PNG, EPS, PSD I can provide you 2-3 concepts and an unlimited round of revisions. Best Regards

Hello there! - I am Expert ***LETS DISCUSS & MAKE A QUICK DRAFT*** I am ready now to start work with you I am highly experienced for this project please come in chat i will show you my previous work. check my Freelancer Portfolio" ✦✦**Portfolio**✦✦ https://www.freelancer.com/u/ShubhamKumarVfx Thanks & Regards, Shubham Kumar Vfx

I'm willing to apply for the project. I'm keen to details and make sure to meet your deadlines. I will give the best of my ability in order to perform the job well and to satisfy your expectations.

Hi I Can do that. just finished work in .net core and angularjs I am individual fullstack .net developer ,having 8 plus year of experience .I deliverd number of project in .net technologies .if you would like to show my code and project.I can show you and give demo as well. just now i deliverd project successfully . I am looking project and  i am free now .i will start immediatly. Skills AWS Lambda Asp.net core Mvc Angualr React Api IIs azure html java script/ jquery sql etc. Looking forward to work with you Thanks