Online PDF Editor

Edit and annotate PDF files online for free. Add text, highlights, drawings, and signatures to your PDF documents locally.

Annotate, mark up, and edit PDF documents right in your browser. Add text boxes, draw freehand notes, highlight crucial passages, and export updated PDFs with zero server uploads.

How to use

  1. Upload your PDF document.
  2. Choose an editing tool from the top bar: Text, Freehand Pen, or Highlighter.
  3. Click or drag on the page canvas to place text or annotations, customize colors and stroke width.
  4. Click "Export PDF" to assemble and download your annotated PDF file.

Frequently asked questions

What is the output resolution of edited PDFs?

Original page vector paths and high-resolution images are 100% preserved. Annotations are embedded natively using pdf-lib.

Does it support touchscreens and stylus pens?

Yes! The canvas leverages Pointer Events with passive touch prevention for smooth stylus and finger writing.

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