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Sign PDF with p7s key in NodeJS

$30-250 USD

Completed
Posted about 1 month ago

$30-250 USD

Paid on delivery
I'm working with an API who giving the hash of a file, it returns a p7s digital sign in base64 who needs to be add it to the PDF dictionary. (It can be one or more signatures) What I want is, the ability to add the sign to the PDF in NodeJS (better if it's with typescript) and then open it in adobe acrobat and see the sign. I will provide the PDF sample, the hash of the file and the response of the API in base64 to be tested. Additionally I have an example in Java to better undestanding of the requeriments The flow of the file will be: 1. Give the hash and received the API response (this will be mocked) 2. The API response must be decoded (it's in base64) and add it to the PDF 3 A new PDF must be saved in the disk 4. When the new pdf is opened in Adobe acrobat, the sign must be available in the signature panel I don't need a UI, it's enough with the .js or .ts file
Project ID: 38006363

About the project

34 proposals
Remote project
Active 1 mo ago

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Expert in PDF signature on web platform. I have enough skills PDF manipulation and signing skills on web app. Please select me to complete your project. Regards.
$140 USD in 7 days
5.0 (5 reviews)
3.2
3.2
34 freelancers are bidding on average $135 USD for this job
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I am a NodeJS developer and have excellent experience in working with APIs and adding digital signatures to PDF files. I can handle the process of receiving the API response, decoding it from base64, adding it to the PDF, saving the new PDF, and ensuring the signature is visible in Adobe Acrobat. I can provide a clean and efficient .ts file to accomplish this task.
$250 USD in 2 days
4.9 (108 reviews)
7.5
7.5
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As an experienced software developer with a long-standing focus in JavaScript and extensive knowledge of Node.js, I'm uniquely qualified to handle your project involving signing PDFs with a p7s key. Over the past 12 years, I've worked with a myriad of projects, including web development, Virtual Assistance and I have successfully graduated over 300 projects overall. My core expertise lies in delivering top-quality work within tight deadlines – something that I believe is crucial for your needs. Not only have I mastered the technical aspect of your project—leveraging my skills in JavaScript and Node.js to add the API response to the PDF and saving it locally—I also offer a valuable layer of project management experience, including flow diagrams as per requested, which will come in handy when dealing with larger files, handling multiple signatures, and undertaking similar projects efficiently. Additionally, my skills in graphic designing using softwares such as Adobe Photoshop can be beneficial to ensure that the sign is clear and easily distinguishable when opened in Adobe Acrobat. Moreover, given I am adept at deciphering Java examples for understanding requirements - like you provided - transitioning into Node.js/TypeScript for implementing this solution is something that comes naturally to me. With me on board, you don't just get a coder but a reliable partner dedicated to providing exceptional quality within reasonable turnaround time. Let's get started!
$220 USD in 7 days
5.0 (19 reviews)
6.9
6.9
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Hello, I can start immediately. I have 13+ years of experience and I ensure you I can complete the project within budget and timeline. I'm not just a developer; I'm your dedicated partner. I'm committed to working with you. Count on me for any upgrades or specific requirements you may have along the way. I have few questions about the requirement. Can we discuss this over chat? Looking forward to hearing from you soon. Best regards, Sneha
$189 USD in 7 days
5.0 (33 reviews)
5.9
5.9
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Hi, I can help u as i have done several similar jobs related to Node.js, JavaScript, Typescript, PDF and Java, I have read the details and furthermore discuss about it, plz discuss with me in detail. Regards
$250 USD in 8 days
5.0 (3 reviews)
5.0
5.0
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Hi, I have 11 years experience in digital signature! I have written many applications for document signing with Usb token, HSM,... I understand your case, I have completed some projects like this before, so I can help you complete the project. I can send you demo before we start. Please check my profile, you can see all projects what I done. Contact me if you interested! Thank you!
$140 USD in 7 days
5.0 (11 reviews)
4.8
4.8
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HI, there. I have read your job posting carefully and so interesting because I have right skills to work on this assignment. I have completed the similar projects so I can complete it in a short time. I have been developing with Node.js and pdf for 7+ years and I will do my best for your project. I invite you to discuss more detailed. Best Regards.
$200 USD in 2 days
5.0 (3 reviews)
4.2
4.2
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Hi , How are you doing? As a professional developer with expertise in JavaScript, Node.js, Typescript, Java and PDF, I eagerly anticipate the opportunity to complete this project for you. Please drop me a message to discuss the project detail. Thank you for considering my services.
$50 USD in 5 days
5.0 (4 reviews)
3.8
3.8
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Hello, We can add digital signatures (p7s) to PDFs using Node.js, Got your API workflow covered. We have 10+ years of experience in all these mentioned tech stacks and a team of well-established 150+ professionals. NOTE - I can share my recently built URLs with you in the chat box for your reference. Let's connect on chat and discuss this further. Regards!
$120 USD in 15 days
5.0 (1 review)
3.6
3.6
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Hello, gepd. I read your job brief regarding Sign PDF with p7s key in NodeJS which requires Java, JavaScript, PDF, Node.js, Typescript skillset. Let's collaborate on a project that excites your audience and is a smart investment. Please come over chat and discuss your requirement in a detailed way. Best Regards, Hunain
$100 USD in 7 days
5.0 (4 reviews)
3.3
3.3
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Hi, We would like to grab this opportunity and will work till you get 100% satisfied with our work. Dear gepd, I saw your project titled "Sign PDF with p7s key in NodeJS" and I'm interested in submitting a proposal. With over 10 years of experience in software development, I have a proven track record and strong expertise in the required skillset, including JavaScript, Node.js, Typescript. Here's a bit more about my skillset: Skills: Java, JavaScript, PDF, Node.js, Typescript I'm confident I can deliver exceptional results for your project. Would you be open to discussing this further? Thank you for your time. Sincerely, A Mateen Lets connect in chat so that We discuss further. Regards
$140 USD in 7 days
5.0 (6 reviews)
2.8
2.8
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I will complete your project in 3 days with 140$. Please contact me asap. I will start your project immediately once you give me this project. Thanks...
$140 USD in 7 days
5.0 (5 reviews)
2.5
2.5
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Dear , I’ve read all of your requirements fully and I'm really interested in Sign PDF with p7s key in NodeJS. I have rich experience in Node.js, Java, PDF, Typescript and JavaScript with over 9 years. I am always ready to discuss more detail this project with you and I can start working immediately. Looking forward to working with you soon. For the best result and a long term in the future. Regards, Mikael.
$30 USD in 3 days
1.2 (2 reviews)
3.5
3.5
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Hello, This is Lorraine , a senior software developer , who has acquired various and perfect skills in building many projects for 7 years. Regarding the technical aspect, I am familiar with JavaScript, Java, PDF, Node.js and Typescript. So I understand your needs and am ready to start working on your project right now. I am checking your attachment, I'll update you shortly... Looking forward to hearing from you soon! Thanks,
$150 USD in 2 days
0.0 (0 reviews)
0.0
0.0
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Hi, I've reviewed your project description, and I have a clear understanding of what you're seeking. We are an expert team which have many years of experience on Java, JavaScript, PDF, Node.js, Typescript Please come over chat and discuss your requirement in a detailed way. Yasir I
$250 USD in 7 days
0.0 (0 reviews)
0.0
0.0
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porque tengo muchos aaños de experiencia en la codificaciòn de algoritmos utilizando IA. Les aseguro poder hacer mi trabajo con absoluta serenidad y muy buen resultado.
$140 USD in 7 days
0.0 (0 reviews)
0.0
0.0
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As a seasoned developer with expertise in handling PDFs, I am confident that I am the best fit for your NodeJS project. My proficiency in JavaScript combined with my knowledge of TypeScript makes me well-suited to create the necessary .js or .ts file you require. Previously, I have had extensive experience integrating third-party APIs into various projects, which gives me an edge in understanding and fulfilling your specific requirements. You can count on my skills to effectively decode and add your API's base64 response to the designated PDF document. Not only will I deliver a functional solution that correctly stores the digital signature within the PDF dictionary, but I will also ensure compatibility for easy access in Adobe Acrobat -- just as you envision it. In addition to my technical skills, my marketing background can also facilitate better understanding and delivery of your core project objectives. With over a decade's worth of experience helping businesses achieve their online goals, fostering your project's success is a commitment I take very seriously. Choose me for this project, and let us leverage technology and design to create something impactful together!
$140 USD in 2 days
0.0 (0 reviews)
0.0
0.0
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Hello Sir/Maam hope youa re doing extremely well ! Jatin this side am working with Node.js and MongoDB with past 3 years contributed in many opensource events including Google Winter of Code, GSSOC and have developed many complex web app and recently i have won 4 National level hackathon so i think am perfect fit for this. Looking forward to hearing from you soon ! Thank you.
$100 USD in 5 days
0.0 (0 reviews)
0.0
0.0
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I am very interested in your project. With my experience in Node.js and PDF document software, I am confident in my ability to successfully deliver this project for you. Additionally, I have a strong track record of completing similar projects efficiently and effectively. Looking forward to the opportunity to work with you and discuss further details about your project requirements.
$140 USD in 8 days
0.0 (0 reviews)
0.0
0.0

About the client

Flag of CHILE
Diego de Almagro, Chile
5.0
1
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Member since Jul 3, 2014

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