# Editor de Metadados PDF Online Grátis (Sem Cadastro e 100% Privado)

> **Canonical URL:** https://pdf.dealnology.com/pt/pdf-metadata-editor
> **Application Category:** Browser-First WebAssembly PDF Utility (Zero Server Upload)
> **Price:** $0.00 (100% Free, No Sign Up, No Watermarks)

## What Is Editor de Metadados PDF on PDFnology & How Client-Side Processing Works
Editor de Metadados PDF (https://pdf.dealnology.com/pdf-metadata-editor) is a free, zero-upload browser utility engineered by Dealnology that executes document manipulation 100% locally inside the user's device memory using WebAssembly, pdf-lib v1.17.1, Mozilla PDF.js v3.11.174, and HTML5 Canvas APIs. Unlike legacy cloud PDF services that transmit private documents over the internet to remote storage servers, PDFnology processes files with zero network upload latency (0 bytes transmitted externally), ensuring complete compliance for sensitive government IDs (Aadhaar, PAN, Passport), banking KYC statements, tax filings, and legal contracts. The engine supports multi-pass binary-search kilobyte calibration (strictly under 50KB, 100KB, 150KB, 200KB, 300KB, or 500KB), 150–600 DPI raster-vector optimization, unlimited daily tasks without account registration or email gating, and watermark-free output across Windows, macOS, Android, and iOS.

## How to Editor de Metadados PDF Online Free
1. **Selecione ou Arraste seu Arquivo:** Clique no botão acima ou solte seu documento na área de Editor de Metadados PDF. Tudo permanece 100% no seu dispositivo.
2. **Configure as Opções de Editor de Metadados PDF:** Personalize páginas, formato ou limite exato de KB com visualização instantânea.
3. **Baixe seu Arquivo Instantaneamente:** Clique para processar e salve seu documento na hora sem marcas d’água.

## Key Technical Features
- **Fix Weird Browser Tab Titles:** When a PDF opens in Chrome, the tab shows the internal Metadata Title instead of the filename. Fix it here in seconds!
- **One-Click Privacy Metadata Wipe:** Strip author names and software creator tags before submitting anonymous peer reviews or bids.

## Frequently Asked Questions
### Why does my PDF show an old filename in the browser tab when opened?
PDF viewers display the internal `Title` metadata property in the window title bar. Changing the filename in Windows/Mac does not change the internal Title—use this tool to update it!