> 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/web/security.md). # Security - [PDF Security with JavaScript PDF Viewer](https://docs.apryse.com/web/security/security.md): Protect your documents with encryption, watermarks, and permissions. Learn how to enable DRM support and secure your PDFs effectively. Explore PDFSecure tool for added security. The Apryse Web SDK str - [Applying redactions to PDFs](https://docs.apryse.com/web/security/security/redact.md): Apply redactions to PDFs easily using the WebViewer UI or programmatically. Learn how to set up fullAPI or webviewerServerURL for programmatically applying redactions. Use WebViewer Server for a promi - [Secure Documents with DRM Support for Document Viewing](https://docs.apryse.com/web/security/xod-and-encryption.md): Ensure your documents are secure with DRM support for document viewing. Encrypt PDFs with custom security handlers to prevent unauthorized access, or convert to XOD files with 128-bit AES encryption f - [Encrypting & securing PDFs using JavaScript](https://docs.apryse.com/web/security/encrypt.md): Secure your PDF document with password protection and adjust permissions using Apryse SDK. Learn how to encrypt and decrypt PDF files with the Standard Security Handler and create custom security hand - [Decrypt & read a PDF document using JavaScript](https://docs.apryse.com/web/security/decrypt.md): Guide to read a PDF document with password protection. - [Apryse Custom Security Handler using JavaScript](https://docs.apryse.com/web/security/custom-handler.md): Encrypt and decrypt files securely with the Apryse Custom Security Handler. Learn how to protect your documents with this DRM solution built into Apryse SDK. Simplify encryption methods and enhance se - [Samples to secure & encrypt PDFs using JavaScript](https://docs.apryse.com/web/security/samples.md): Learn how to secure and encrypt PDFs using JavaScript with these helpful samples. Explore how to encrypt and decrypt files by adding or removing passwords. Launch the demo and view the source code for - [API for Securing PDFs with JavaScript](https://docs.apryse.com/web/security/apis.md): Enhance document viewing and editing with WebViewer, a JavaScript library for annotating and editing documents across browsers. Explore PDFNet.SecurityHandler for secure methods. The Apryse Web SDK st --- # 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/web/security.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.