Invoicing software

To make customized Invoices to bill customers for incoming calls through our PBX and Credit Notes to pay telephone agents for time worked.

We make and supply interchangeable background images for the LibreOffice Calc Spreadsheets. We put 3 small spreadsheets on the same page but the client only sees the background image !

Before being uploaded to the server, the spreadsheets with background images, including all calculations , must be changed to pdf with open source software (ex; AstPP - to be discussed), without loosing anything,

Than they can be filled out on the Internet by our clients, changed to pdf again or to png and send by email, as invoices or Credit Notes, to their final destination. The client must never see the spreadsheet, he only sees the background image with the data he entered into the Cells !

Min. knowledge:

1) LibreOffice Calc Spreadsheets.

2) Software (open source) to change the spreadsheet files to pdf, without loosing calculations !

3) Asterisk PBX would help

This is a none standard project and absolutely not for beginners !!

Very good knowledge of the way Spreadsheets and Billing software work, is needed. We have a Multi Disk Server with KVM disk management and MySQL DB ready to upload.

-- Good and quick communications are essential !

You must have a computer with a Linux OS --- This is not for Windows !!

Please read and understand the file attached to this project, for step by step instructions !

Project will be divided into 2 milestones.

Skills: PHP, Software Architecture, MySQL

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About the Employer:
( 13 reviews ) Pointe Calumet, Canada

Project ID: #26451182

11 freelancers are bidding on average $552 for this job


Hi i already worked before invoice software expert in php and mysql [login to view URL] let we do more discussion in private chat regards Jinal

$700 CAD in 10 days
(74 Reviews)

Hi, Greetings! ✅checked your project details: Invoicing software ✅Completed Time: In project deadline We have worked on 600 + Projects. If you are looking for a true Freelancer, I am the Right person for you. I More

$300 CAD in 3 days
(104 Reviews)

Hello, sir I am a full-time full-service web developer. I have read your project carefully and got your requirements. I am a senior web developer who has 6 years of experience. I've developed over 50+ websites and web More

$500 CAD in 7 days
(10 Reviews)

Hello I have a huge working experience for web-based invoicing application and we will serve you a better solution for your requirement so can you come on chat and let's discuss more? thanks gautam

$475 CAD in 7 days
(24 Reviews)

Hi Sir, Its Hisham. I am a Software Engg. with more than 4 years of market experience. I have developed many web and cloud-based solutions for my clients. I have expertise in many backend and frontend languages which i More

$500 CAD in 7 days
(7 Reviews)

Hello Michael I checked your requirement carefully. I am very interested about this project. I agree two milestones. Let's discuss detail in chat. Dmitry

$500 CAD in 7 days
(2 Reviews)

Hello I see you need some help building the invoice system. I can help you with that and start right away! Since this is an invoicing system, you can generate the invoice against any usage and send it to the customer. More

$700 CAD in 15 days
(1 Review)

Thanks for your job posting I just read your job posting and your job catches my eye. I am skilled web developer with skills including MySQL, PHP and Software Architecture. My deep experience includes Node.js/Express More

$400 CAD in 4 days
(1 Review)

Hello how are you? We can help you with your project. We work with Elementor Page Builder. We provide personalized WordPress Support services, Website Migration, Custom Web Development PHP, CC3, HTML5, MySQL.

$750 CAD in 7 days
(1 Review)

Myself, Gaurav Jobanputra, having 8+ years experience in Software, Web and Mobile Developments. We do believe that first point of attraction is the design and banner of the website hence i can tell you that we have got More

$750 CAD in 60 days
(0 Reviews)

Greetings, I have gone through your requirements attached for the invoicing software and I am pleased in telling you that I have all the skills required for its development, I will quite potentially develop you the in More

$500 CAD in 7 days
(0 Reviews)