Office Online URL - Enter your Office Online's WOPI discovery URL. For on-premises Files Advanced installations, you must be using an on-premises Office Online setup to be able to provide this URL. Microsoft's Office Online cloud service is limited to service provider use and is not publicly accessible without special certification and white listing.
Use Office Online for - Editing allows you to edit Microsoft Office files - DOCX, PPTX, XSLX- while Viewing and Editing allows you to edit the mentioned files while also being able to preview DOC, XLS and PPT files as well. If this setting is disabled, all Office files and PDF files will open in Files Advanced internal previewer.
Enable Microsoft services for Bing spelling, proofing and Smart Lookup - Uses Microsoft's Bing services for spell-check capabilities.
Allow connection to Office Online using self-signed / untrusted certificates - when enabled, users can access Office Online servers which use untrusted certificates.
Preview PDF files in Office Online - when enabled, users will preview PDF files in Office Online, given that Use Office Online for is set to Viewing and Editing. In all other cases PDF files will be previewed in Files Advanced internal previewer.
Enable built-in document previewer in web client - Enables web previewing.
Only allow previews of files that do not require server-side rendering (PDF, images, text files) - Decreases the load caused by web previews by only previewing files that do not require additional rendering. These files are PDFs, Images and simple text files.
Maximum cache size for recently rendered previews - Sets the maximum size of the cache that is stored when you preview a file. This greatly increases the speed at which files open for preview if they have been recently opened.
Maximum concurrent generation calls - Sets the maximum number of concurrent preview generation requests.
Allow connections to web preview services using self-signed certificates - Allows you to contact web preview services that are using self-signed certificates. These are other Files Advanced Tomcat services.
Use custom URL for web preview service - Enable if you have multiple Files Advanced servers and you wish to specify which one should handle the web previewing.
