PDFMarshal
Privacy-first PDF tools
PDF Technical FAQ & Answer Knowledge Base
Direct, neutral answers to technical questions about PDF documents, security, and browser processing.
Primary Answer: How PDF processing works in-browser
Browser-native PDF tools process document byte buffers locally using JavaScript typed arrays and WebAssembly sandboxes. This removes server-side file transmission risks, guaranteeing that confidential documents remain 100% private on the local client machine.
Key Facts
- Zero server upload architecture
- Permanent font glyph vector redaction
- Supports ISO 32000 PDF standards
- Memory-bound processing limits
Privacy & Security
No. PDFMarshal processes 100% of your documents locally in your web browser using WebAssembly and JavaScript. Your files never leave your device.