Creating PDFs

Creating PDFs is a feature in Claude.ai and the Claude desktop app that lets Claude generate, edit, and deliver PDF files directly within a conversation. Instead of producing only text responses, Claude uses a sandboxed code-execution environment to programmatically construct PDF documents from your instructions or uploaded data — then offers them as downloadable file artifacts. You describe what you want (a formatted report, a converted document, a filled form), optionally upload source files such as CSVs or existing PDFs, and Claude produces a ready-to-use file you can save to your device. The feature works through Claude's 'Code execution and file creation' capability, which must be toggled on in Settings for Free and Pro users but is enabled by default for Team and Enterprise organizations. Under the hood Claude writes Python (using libraries such as pypdf, pdfplumber, and pdfkit) inside an isolated sandbox, generates the file, and surfaces it as a downloadable artifact. The sandbox is isolated from the internet unless an administrator has specifically enabled network egress. PDF creation is one output format among several (Excel, PowerPoint, Word documents are also supported). The hard limit for any single file — both uploads and downloads — is 30 MB. PDFs larger than 30 MB can still be processed for reading and extraction by routing them directly through the sandbox rather than loading them into the context window, but generated output files must remain under 30 MB.