Is there any online service where I can create an Invoice but entering my own information ?
so that I can share that invoice to whom I exchange my services against payment.
You should try fetchflow . They offer full featured invoicing solution for free. It is OS independent as it is web based. You can create Unlimited PDF [Adobe PDF] branded invoices, estimates & PO's. There are many cool features like paypal integrated invoice payments,MS-Excel template based invoicing,Integrated stock & catalog invoicing etc.And many useful add-on,s are also available.
