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Explore Invoice Simple's most widely used features

How do I change my invoice template and color?
How do I generate a statement of invoices for a client?
How do I save an Invoice or Estimate as a PDF file?
How can I accept payments with a QR code?
How can my customers cover the PayPal processing fees?
How do I request a deposit from a customer?
How do I keep a record of expenses?
How do I view a report of my Invoices, Clients and Items?
How do I export a spreadsheet of my invoices?