Edit PDF
Add text, shapes, highlights, images and freehand drawing to any page.
Free, no uploads, no sign-up. Runs 100% in your browser.
How Edit PDF works
Edit PDF runs entirely in your browser. Add text, shapes, highlights, images and freehand drawing to any page. Under the hood it uses pdf-lib (a pure-JavaScript library that creates and edits PDF structure (pages, text, images, forms)) and PDF.js (Mozilla’s PDF renderer, used for thumbnails, previews and text extraction (runs in a Web Worker)). Your files are read into this tab’s memory, processed on your own CPU, and handed back to you as a download. Nothing is sent to a server.
Input: PDF.
How to use Edit PDF
- Drop a PDF.
- Pick a tool from the toolbar: text, shapes, highlight, image or freehand.
- Click on the page to add elements; drag to move and use handles to resize.
- Save and download the edited PDF.
Tips
- Encrypted PDFs must be unlocked first with Unlock PDF.
- Large scanned PDFs are mostly images. Compress PDF shrinks them the most.
- Your original file is never modified; you always download a new copy.
Edit PDF FAQ
- Are my files uploaded?
- No. This tool runs entirely in your browser tab. Files are read from your disk into memory and the result is generated locally.
- Is it free? Are there limits or watermarks?
- Free and open source (MIT). There are no file-size caps, daily quotas, accounts or watermarks.
- Does it work offline?
- Yes, once the page (and any engine it needs) has loaded, it keeps working without a connection thanks to the service worker cache.
Related tools
- Sign PDF: Draw, type or upload a signature and place it anywhere, plus dates and initials.
- Redact PDF: Black out areas or auto-find emails, phones and card numbers, then flatten.
- Watermark PDF: Stamp text or logo watermarks with opacity, rotation and tiling.
- Merge PDF: Combine multiple PDFs into one ordered document with drag-and-drop sorting.