How it works
Añade marca de agua y exporta local.
Superpone texto o imagen sin subir.
🔒 100% Secure & Local: Your documents are processed entirely in your browser and never uploaded to any server.
Arraste e solte arquivos aqui
Overlay text or a small image on every page. Up to 80 MB · 25 files / batch
Añade marca de agua y exporta local.
Conversions run in your tab with JavaScript — no desktop app required.
Files stay on your device during processing. We do not receive your uploads.
Heavy codecs and AI models run locally via Web Workers and WASM (FFmpeg.wasm, Transformers.js).
Añade marca de agua y exporta local.
Marcas aplanadas no son editables. El procesamiento es 100% offline en tu navegador: los arquivos nunca salen de tu dispositivo.
Yes. This tool is free convert online with no signup. Processing stays in your browser — no uploads.
You control quality settings. Choose higher quality for no quality loss when converting online.
Every conversion runs inside your browser tab using JavaScript and Web Workers. There is no background server queue and no account is required for core tools.
Your files are never uploaded to FreeConvertKit for processing. Originals, previews, and exports stay on your device unless you choose to download or share them yourself.
When codecs or AI models are needed, WebAssembly modules such as FFmpeg.wasm and Transformers.js execute locally — giving you desktop-class power with absolute file privacy.
Converta documentos Word en PDF listos para compartir sin salir del navegador.