In Pictures: 10 technologies that changed business forever

The applications, devices and services that have changed the way we do business often started as small-scale alternatives to the status quo. Now we can't survive without them.

3. Adobe PDF

We tend to take ground-breaking tech like Adobe PDF for granted. After all, the portable document formats are amazingly prevalent on the Web, and you can create files easily using tools such as CutePDF. There are now about 150 million PDF docs on the Web today, according to Adobe. They work on just about every computing platform and mobile device, and recent advances in e-signatures—namely, typing a password to protect documents—have made the standard viable in the banking and finance sectors.

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