A Viewer for All File Types

Castle's built-in document viewer works much like Adobe Reader, allowing you to view PDF, Word, Excel, and many other file types without ever leaving your browser. Your users won’t need any locally installed programs to view or search through documents on your website.

Castle’s document viewer includes dynamic search, so you can find a specific page within a document quickly and easily. It supports optical character recognition (OCR), turning scanned image files into searchable text documents. PDF conversion, available with the Castle Cloud hosted service, turns all uploaded Office files into platform-independent PDFs.