普通的PDF阅读器仅仅是阅读器，如果您想在重要的文档上进行签名，在重要的文档段落进行标注等，这几乎是不可能的

The Adobe® PDF reader is simply that: A reader. If you want to sign your name on an important document, write notes on a presentation or letter, or simply doodle and send to Gramma, you're out of luck!

NeuroScript提供简单便利的PDF阅读器并且支持您使用手写板或鼠标对其进行签名，并且无需提前安全任何PDF阅读器产品

NeuroScript now offers a simple PDF reader that allows you to write in existing PDF documents using a pen tablet, touch tablet or a computer mouse. All of this without needing Adobe reader installed!

当使用手写板的时候，PDF工具可可以直接在文档上插入签名，您甚至可以直接使用高精度的数码手写板进行随时随地的签名练习

When used with an affordable pen tablet, PDF By Hand allows you to add signatures, annotations and, even, practice handwriting while benefitting from the high accuracy and resolution of a digital pen tablet. It can be used at the office, on the job, at home and at school.

直接购买ADOBE公司的签名软件需要额外支付三百美金

You can always purchase Adobe Acrobat starting at around $300, but who in their right mind wants to spend that much simply to write a few things in a document?