About the fonts

We realize that the majority of users interested in this project will likely only want the fonts. For this purpose, there is a Source Sans font package that includes just these resources. The family currently includes six weights, from ExtraLight to Black, in upright and italic styles. The fonts offer wide language support for Latin script, including Western and Eastern European languages, Vietnamese, pinyin Romanization of Chinese, and Navajo (an often overlooked orthography that holds some personal significance for me). These fonts are the first available from Adobe to support both the Indian rupee and Turkish lira currency symbols. Besides being ready for download to install on personal computers, the Source Sans fonts are also available for use on the web via font hosting services including Typekit, WebInk, and Google Web Fonts. Finally, the Source Sans family will shortly be available for use directly in Google documents and Google presentations. Full glyph complement specimens (793K) are available in the Adobe type store along with informational pages for each style.

for more details, please visit here.

PDFTextStream is a  PDF content extraction library for Java and .NET(in fact, the .NET version is compiled with IKVM).
PDFTextStream is similiar to PDFBox(Open source), but it is a commercial product, could not be used free before v2.6.
Compare to PDFBox, another difference is  PDFTextStream is much faster than PDFBox( I got the report from the home page of PDFTextStream without testing).

Because of the realities of the economics around developing and maintaining a product like PDFTextStream, its pricing has often been out of reach of many projects and very small organizations that really need high-quality PDF content extraction functionality. That’s not to say that PDFTextStream is overpriced — it’s actually less expensive than other options — but that is small comfort to many that simply cannot afford or cannot justify the expenditure yet.
This change should fix that: if you have a smaller project, are working on a startup, are involved in information research, etc., you can now benefit from all that PDFTextStream has to offer.

for more details, please visit here.