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Fiverr Pro
English
$
USD
I will build a windows desktop invoice and billing app with real a4 PDF
Thalha M.
About this gig
You keep doing one job by hand. An invoice retyped in Word. A quotation in a spreadsheet someone broke. A total you check twice because you do not quite trust it.
I build that one job into a small, exact Windows desktop app. Not a template with your logo dropped on it.
WHAT YOU GET
- The screen you asked for: invoice or quotation entry, your columns, your layout
- A real A4 PDF that prints properly, with your header and page numbers
- Money held as whole cents, so a total cannot drift
- Installed on your own PC, working with no internet, your data in an open file
- Trained on a call, using your own numbers
HOW I WORK
I am the developer, so the person you message writes the code. Check every figure in my second gallery image: they all reconcile, including a VAT line a float gets wrong by a cent.
MORE THAN ONE SCREEN?
Stock across branches, double-entry accounting, customs duty or multi-counter retail: say so and I will point you to the right package.
Message me with what you do by hand today and I will say plainly whether this fits.
Get to know Thalha M.
Thalha M.
Custom business software for retail, stock and accounting
- FromSri Lanka
- Member sinceSep 2026
Languages
English
I build custom business software for companies that have outgrown spreadsheets and off-the-shelf packages.
My work is the systems that run a business day to day: retail and wholesale point of sale, stock and warehouse control with barcode labelling, accounting and double-entry ledgers, loans and savings, import duty calculation, and the reports that come out of them.
I take a project from first conversation to installed and running: requirements, build, data migration, staff training and support. Remote worldwide, on site in Sri Lanka.
Money is exact integers, so totals never drift.
My Portfolio
FAQ
Will it print on my existing printer?
Yes. The output is a genuine A4 PDF, laid out for paper with proper margins and page numbers, not a screenshot of a screen. It prints from any printer that prints a PDF, and it emails cleanly.
Is this a desktop program or a web page?
A Windows desktop app by default: it runs on your own PC, keeps working with no internet, and your data never leaves the building. If you need it from anywhere, tell me and I will say honestly whether web suits you better.
What if I also need stock, accounts or duty?
Stock deduction and import duty are in the top package. Anything larger, such as multi-counter retail, full double-entry accounting or several branches, is a bigger project. Message me and I will tell you which fits.
Do I own it afterwards?
You own your data outright, in an open documented format on your own machine, and I will export it in any shape you ask for at any time. The program source code is available as an extra if you want to hold it yourself.
