About A4 Supplies


We are the leading source in the United States for all things A4: A4 binders, A4 index tab dividers, and A4 paper.  We started as a business creating presentations given throughout Europe and we’ve been handling A4-size materials for many years, sending finished products to Europe.  Knowing how difficult it is to get A4-size products in the US, we decided to offer some of our own materials to other businesses in America.

We are located in Round Rock, Texas, in the extended Austin-San Antonio corridor.  Call us today at (512) 240-2427 to experience our great customer service.

Courteous, Knowledgeable Office Supply Professionals

When you contact A4 Supplies, you will be working with courteous professionals who are knowledgeable about A4 office supplies and printed materials,  and who value your business.

Our production facility is a completely secure, closed-door environment suited for the reproduction of your sensitive documents and intellectual property.

We are committed to producing a product of which you can be proud. We use of a variety of brands – including Xerox, Canon, and Oce and Xerox – to make sure your printing job turns out right. Whether you work in Publisher or Adobe, we have the software to make it happen. Choose from our variety of paper stocks, or work with our sales staff to order the paper that fits your company.

Our investment in top-of-the-line digital printing technology means your company receives exceptional quality every time. Under the watchful eye of our knowledgeable staff, your project will be ready to exceed expectations.

We welcome the opportunity to earn your trust and respect.


About A4 Sizing

The origin of the Ax paper sizing system dates all the way back to 1786 when a German scientist theorized the remarkable utility of this system based around the square root of two.  Many publications during the French Revolutionary period used the Ax aspect ratio but for whatever reason fell out of favor in later years.

The modern A4 system was developed in the early 1900’s by Dr. Walter Porstmann.  The main advantage of this system is that it’s very easy to scale.  If you divide a sheet of Apaper into two equal halves the halves maintain their aspect ratio of √2:1.  The practical outcome of this mathematical theory is that documents are more easily able to be enlarged and shrunk via photocopier without waste.

The net result is the popular A4-size paper which is 210 × 297 mm (8.3 × 11.7 in), 6 mm narrower and 18 mm longer than traditional North American “Letter” size paper.