Choose the best fonts for professional, easy-to-read invoices, and get tips on customizing your PDF invoices for maximum impact.
A well-designed invoice does more than just request payment; it reflects your brand’s professionalism and attention to detail.
One of the most important (and often overlooked) elements is font choice. The right font can make your invoice easier to read, more polished, and more likely to be taken seriously by clients.
In this guide, we’ll highlight the best fonts for business invoices and show you how to customize fonts in PDFs for a clean look.
The Best Font for Business Invoice Design: 5 Options to Choose From
Choosing the right font for your business invoice isn’t just a design decision. It directly affects how professional, legible, and trustworthy your invoice appears.
Below are some of the best fonts for business invoices:
Helvetica
This timeless sans-serif font is known for its clean lines and excellent legibility. It’s widely used in corporate branding and professional documents, giving your invoice a modern, polished look.
It works well across print and digital formats, fits most industries, and is highly legible even in small sizes.
Arial
Arial is one of the most universally available fonts and is often seen as a reliable fallback to Helvetica. It offers a professional look that’s easy to read both on both screen and paper.
It’s compatible with almost every software and platform, is easy to scan, and is great for invoices that need to be emailed or printed.

Times New Roman
A classic serif font, Times New Romain is especially useful if you want your invoice to look formal. The serif helps guide the eye, which can enhance readability for longer invoices with multiple line items. It has a familiar and professional appearance and is easy to read in print.
Calibri
Calibri is the default font for many Microsoft Office documents, so it’s instantly familiar to most clients. It combines modernity with a rounded design that feels approachable yet professional.
It has well-balanced proportions for legibility and works especially well in compact layouts.
Open Sans
This font is a versatile, web-friendly sans-serif with a clean and modern look. It’s widely used in design, making it a great choice for digital invoices or cloud-based invoicing platforms. It’s designed for optimal screen readability and is professional and neutral.
How to Change the Font Style in Your PDF Invoice
Now that you know how important font styles are for your invoice, let’s look at how you can change the fonts in your PDF so that it looks professional and trustworthy:
- Step 1: Open Smallpdf’s PDF Editor in your browser and click “Choose Files” to upload your PDF invoice from your device. You can also drag and drop your PDF into the upload area.
- Step 2: Wait for your PDF to load, and then click the “Edit Text” button. Next, click anywhere in the PDF where you want to edit your font.
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Step 3: Click inside any text box where you want to change the font. You can then change the font style, size, color, and alignment.
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Step 4: When your PDF invoice is ready, click the “Download” button in the top right corner, and your file will download to your device. You can also click “Finish”, allowing you to print, share, or export your PDF in different formats.
Make Your Invoice Look Professional in Minutes
Use Smallpdf’s PDF Editor to customize fonts, layout, and design in your PDF invoices with just a few clicks. Perfect your invoices to match your brand—no design skills needed!
FAQs About the Best Font for Invoice Design
What font is best for invoices?
The best font for invoices is one that’s clean, professional, and easy to read. Fonts such as Helvetica, Arial, or Calibri are great options. These fonts ensure clarity and make key details like totals and due dates easy to scan.
Serif fonts like Times New Roman are well-suited to formal industries, while modern options like Roboto or Open Sans suit most businesses.
Which font is used for billing?
The most commonly used fonts for billing are Arial, Helvetica, and Calibri because they’re clear, professional, and widely supported. These fonts ensure invoices are easily read on-screen and in print.
What is the standard font size for invoices?
The standard font size for invoices is typically between 10 and 12 points for body text. This range ensures readability without overcrowding the layout. Headings like “Invoice” or “Total Due” are often set larger, around 14 to 16 points, to create a clear visual hierarchy.
