Browser Engine · 100% Client-Side Private

AI PDF Editor

Intelligently edit text, replace names and dates, and add signatures to your PDF documents while preserving original formatting and layout. Everything runs 100% privately in your browser.

To edit a PDF, upload your file, click on any text block or add a signature, make your changes, and download your updated PDF — 100% private with no server uploads.

100% Private Browser-Based PDF Workspace

Edit text, sign, annotate, redact, and fill PDF forms. Zero server uploads.

🔒 Local RAM Processing

Upload PDF Document to Edit

Edit PDF text, add signatures, highlight, redact sensitive info, and organize pages directly in your browser.

Preserves Layout Zero Server Uploads Instant WASM Speed

Help us make PDF Editor better

What would make your PDF editing workflow easier? Tell us what feature you would like to see next.

Free Online PDF Editor — Edit, Sign, Fill & Redact PDFs Privately

Edit PDF text, add images and signatures, fill out forms, highlight content, redact sensitive information, and organize pages directly in your browser memory — 100% privately.

✏️ Interactive Text Editing & Redaction

Click to edit existing text blocks, add new custom text, find & replace values, or permanently redact sensitive content.

✍️ Sign & Fill Forms

Draw, type, or upload custom e-signatures, add approval stamps, and fill out interactive PDF document fields.

🔒 100% Client-Side Private

All PDF rendering, layout analysis, and export processing take place 100% privately inside your local browser memory.

Zero Server Uploads

Files process in local RAM

Instant WASM Speed

No waiting queues or lags

Unlimited Batching

Convert files without limits

Suggest a Feature or Improvement for AI PDF Editor

Need custom options, higher limits, or extra format support? Let our engineering team know!

Direct Feedback

How to use AI PDF Editor

1Upload your PDF document to analyze its text blocks and layout.
2Click any text area to edit names, dates, numbers, or paragraph content.
3Draw, upload, or type a custom signature and place it anywhere on the page.
4Click Export PDF to download your clean, updated PDF document.

How it works

Upload any PDF document and the editor automatically analyzes page dimensions, text coordinates, font metrics, and reading order.

When you edit text, original bounding boxes are erased cleanly and replacement text is drawn with matching font properties and automatic size fitting.

Signatures and layout preservation

Create custom signatures by drawing, uploading an image, or typing with cursive script fonts. Position, scale, and rotate signatures anywhere on the document.

Your original page dimensions, background elements, and surrounding text remain completely unchanged.

Frequently Asked Questions

Are my images uploaded to a server?

No. Every conversion runs locally in your browser using your device's own processor. Your images never leave your computer or phone, and nothing is stored on our servers.

Does it preserve the original PDF layout?

Yes. The editor detects original font metrics and bounding boxes, replacing content cleanly without shifting surrounding text or damaging page structure.

Can I add and draw signatures?

Yes. You can draw signatures using mouse or touch, upload a PNG/JPG signature image, or type your name in cursive script fonts.

Is it free, and are there limits?

It's completely free with no account required. Because processing happens on your device, there's no per-file upload limit — the practical ceiling is your device's available memory. You can batch many files and download them as a single ZIP.

Guides & Tutorials

Related Tools

Merge PDF

Combine several PDF files into one, in the order you choose.

Split PDF

Extract pages or split a PDF into separate documents.

Compress PDF

Shrink large, scanned or image-heavy PDFs in your browser.