How to add PDF bills and receipts to your app

A PDF bill looks the same on every phone, can be shared on WhatsApp or email, and can be printed. An AppCub app can make bills, receipts and quotes as PDFs from the data in the app, for you to share or print from the phone.

Updated 2026-11-09

Bills, receipts and quotes

Bill or invoice: what the customer bought, the amount and taxes, and the amount due
Receipt: proof that a payment was received, such as a fee receipt or a rent receipt
Quote or estimate: prices before the work starts, with a validity date
Statement: all entries for one customer over a month, useful for udhaar khata and monthly tiffin

What a bill usually shows

What your bill must legally show depends on your business and whether you are registered for GST. Ask your CA; AppCub can lay out whatever they tell you.

Your business name, address, phone and logo
Your GST number and other registration numbers, if you have them
A bill number and date
The customer's name and phone number, and address if you deliver
Each item with quantity, rate and amount
Discount, taxes, and the total in figures
How it was paid: cash, UPI, card, or due
A thank-you line and your return or warranty terms

Numbering and records

Give every bill a number that goes up by one and never repeats, such as 2026-27/0145. Ask the app to make the number by itself, so two bills never get the same one. Keep cancelled bills as cancelled instead of deleting them.

If only you make bills on one phone, the bills can stay on that phone. If staff make bills on their phones, or you want to see every bill from any phone, keep the data in your own Supabase database, connected from the chat, so the numbers stay in order across phones.

Sharing and printing

After the bill is made, a Share button opens the phone's share menu, where you pick WhatsApp, email or anything else on the phone. A WhatsApp click-to-chat button can send a text summary with the total, but it cannot attach the PDF itself; use the share menu for the file.

To print, use the phone's print option with a printer your phone can already print to. AppCub apps do not connect to billing machines or thermal receipt printers.

Mistakes to avoid

Bills without numbers or dates, which are hard to trace later
Totals that do not match because tax was added twice; test with real bills
Customers' full details on a bill shared in a group chat
Editing an old bill instead of making a corrected one

With AppCub

Ask, for example: "After each sale, make a PDF bill with my shop name, GST number, bill number that counts up, items, GST at 18%, total and payment mode. Add Share and Print buttons." Attach your logo in the chat. AppCub shows the bill in the plan; try a few on your phone before using it with customers.

Questions

Can my app make GST bills?

It can make PDF bills with your GST number and tax lines as you describe. Ask your CA what your bills must show.

Can I send the PDF bill on WhatsApp?

Yes, from the Share button and the phone's share menu. A WhatsApp click-to-chat link can carry only text.

Can the app print on a thermal printer?

No. AppCub apps do not connect to thermal or billing printers. Print the PDF from the phone.

Can bill numbers count up by themselves?

Yes. Ask for automatic numbering; with several phones, keep bills in your Supabase database.

Can I make fee receipts for a coaching class?

Yes. A fee receipt PDF can show the student, month, amount and payment mode.

Does the app connect to my accounting software?

No. AppCub apps do not connect to outside accounting software. Your CA can work from the PDFs.

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