How it works
Upload a PDF, add text or image watermarks with placement controls, and export locally.
Overlay text or an image on every page without uploading.
🔒 100% Secure & Local: Your documents are processed entirely in your browser and never uploaded to any server.
Drag & Drop files here
Overlay text or a small image on every page. Up to 80 MB · 25 files / batch
Upload a PDF, add text or image watermarks with placement controls, and export locally.
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).
Upload a PDF, add text or image watermarks with placement controls, and export locally.
Flattened watermarks are not editable later; large stamp images increase file size. Processing is 100% offline in your browser — files never leave your device.
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.
Remove a password you already know. Processing stays local.
Merge JPG, PNG, WebP, or GIF images into one PDF locally.
Turn individual pages or the whole file by 90, 180, or 270°.
Add a password with AES-256 encryption. Nothing is uploaded.
Turn Word documents into share-ready PDF files without leaving the browser.
Keep a page range or export each page as its own PDF.