There was a download of Spire.PDFViewer 7.10 on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The most popular versions among the program users are 5.1, 4.1 and 1.6.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. This software was originally developed by e-iceblue. The common filename for the program's installer is _C1076D3035E1334BE8D374.exe. The software belongs to Office Tools.
From the developer:
Spire.PDFViewer is a powerful component to view PDF for .NET, which allows developers to load PDF document from stream, file and byte array. It enables to open and read encrypted PDF files. Also, it supports to print PDF with multiple orientations. Furthermore, it can export PDFs as image formats like .bmp, .png and .jpeg. When viewing PDF document through Spire.PDFViewer, users can set display as fit page, page down/up, zoom in/out, etc. Spire.
You may want to check out more software, such as Spire.Office for.NET, PDFViewer or Spire XLS Alternative, which might be similar to Spire.PDFViewer.