> For the complete documentation index, see [llms.txt](https://docs.apryse.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.apryse.com/appian/get-started/faq/is-webviewer-secure-to-use-with-sensitive-data-or-files-stored-in-appian.md). # Is WebViewer secure to use with sensitive data or files stored in Appian? World's #1 PDF SDK Library for Web, Mobile, Server, Desktop Yes, Apryse WebViewer is safe to use with sensitive data and files stored in Appian. The plugins are hosted within Appian and integrate into Appian's security architecture without disruption, providing you with the same level of security you know from Appian. None of your Appian data or files ever leave your Appian environment, since all data transfered is handled by the Appian Connected System and document processing occurs in the browser. Also, Appian Solution Engineering worked with us to develop this component. Currently, it is the only complete Document SDK approved by Appian on the AppMarket. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation by asking a question. Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters: ``` GET https://docs.apryse.com/appian/get-started/faq/is-webviewer-secure-to-use-with-sensitive-data-or-files-stored-in-appian.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.