The software Google's browser uses to show PDF files has been proprietary for years, but now it's an open-source project called PDFium that others can scrutinize or use themselves. Stephen Shankland ...

Free PDF viewer with unique UI in terms of flat design and original layout. Annotate PDF with a complete set of tools, manage PDF files, connect to cloud services and even protect PDF with signature.

While the Adobe PDF Reader is widely used, there are other freeware alternatives to Adobe Reader, too, that you may like to consider for your Windows operating system. Most browsers, like Edge, ...

PDF Reader Pro lets you insert, replace, or delete text and images just like you would in Word, and you can rearrange pages, merge files, crop, or rotate with ease. It also includes a batch processor ...