Free Online PDF Editor, Highlighter & Signature Tool
Edit PDFs online: add text, highlight pages, draw a signature, and download the modified file for free. 100% client-side processing in your browser. Absolute privacy with zero file uploads — files never leave this device.
Rendering, annotations, and signing run locally in this browser.
How to annotate a PDF
- Open a PDF, then choose text box, highlight, or sign.
- Drag objects with the move handle. Delete with the trash icon or Backspace.
- Download the modified PDF. Annotations are written locally.
Frequently asked questions
Can I delete original PDF text?
Not as real glyphs. A text box with a solid fill (white by default) covers the old text in the exported file.
Does highlight search words?
No. Highlight is a colored rectangle you draw. It does not use OCR.
Are signatures stored?
No. Draw or upload a signature in this session, place it, and download. We do not keep a copy.
Will comments work in Adobe Reader?
Exports are a flattened PDF with drawn text, highlights, and images — not Adobe comment markup.