To open PDF files you will need a special PDF viewer. PDFS are identified by the .pdf extension of a file.
PDF-XChange Viewer is a free program that allows PDF documents to be displayed.
PDF-XChange Viewer is a free PDF viewer. The advantage of this program compared to the original Adobe PDF Reader program is that PDF-XChange Viewer is smaller in size and faster to boot. Further, it has more functions, for example direct text or notes to add to PDF documents.
In addition, PDF XChange Viewer is also available in a portable version, this makes it possible for the program without installation directly to boot from a USB-stick. PDF-XChange Viewer is Windows compatible only.
When you in addition to PDF's, view PDF's want to be able to edit, than you can against payment the Pro version purchase.
PDF-XChange Viewer has the following features:
PDF-XChange Viewer screenshots
You can free download PDF XChange Viewer and safe install the latest trial or new full version for Windows 10 (x32, 64 bit) from the official site.