Spire.PDFViewer for WPF是一款強大的WPF PDF查看器控件，讓開發人員能夠用他們自己的WPF應用展示PDF文檔而無需Adobe Reader。它可以用來加載和查看PDF文檔，諸如PDF/A-1B、PDF/X1A甚至加密的流、文件和字節數組，并支持打印和縮放等。作為一款專業的WPF PDF查看器控件，它支持多個打印定向，包括landscape、portrait 和automatic。另外，Spire.PDFViewer for WPF可以到處PDF到圖像并保存為流行的格式，如.bmp、.png 和.jpeg。開發人員在查看PDF文檔時還可以設置顯示適應頁面的各種選項。

Spire.PDFViewer for WPF是一個獨立的組件，它是個完全獨立的WPF庫，用以加載和查看PDF文檔。不需要其它第三方軟件或庫安裝于系統中。

Spire.PDFViewer for WPF is a powerful WPF PDF Viewer control which enables developers to display PDF documents with their WPF applications without Adobe Reader. It’s available to load and view PDF documents like PDF/A-1B, PDF/X1A, and even encrypted from stream, file and byte array with support for printing, zooming, etc. As a professional WPF PDF Viewer control, it supports multiple printing orientation including landscape, portrait and automatic. Furthermore, Spire.PDFViewer for WPF can export PDF to images and save as popular formats like .bmp, .png and .jpeg. In addition, developers can set display as fit page, page down/up, zoom in/out, etc. when they view PDF documents.

Spire.PDFViewer for WPF is a standalone component. It is a totally independent WPF library for loading and viewing PDF documents. It does NOT require Adobe Reader or any other 3rd party software/library installed on system.