Free Online PDF Editor & Annotator — Add text, highlighters, digital images, and shapes directly onto any PDF document 100% in-browser

About Free Online PDF Editor & Annotator

Edit PDF documents online for free. Type custom text, draw freehand annotations, highlight key paragraphs, insert logos and stamps, and draw shapes without installing software or creating an account. Runs 100% client-side with complete privacy.

Key Capabilities & Features

Add custom text anywhere with custom font sizes, colors, and typography
Smooth freehand pencil and drawing tools with adjustable stroke width
Semi-transparent color highlighters (Yellow, Green, Cyan, Pink)
Upload and position transparent PNG or JPEG image stamps and signatures
Add vector rectangle and shape outlines with custom border styles
Zero file uploads: 100% confidential in-browser processing

How to Use Free Online PDF Editor & Annotator

Upload PDF

Select or drag & drop any PDF document into the editor.

Choose Tool

Select Add Text, Highlighter, Drawing Pen, or Insert Image from the toolbar.

Annotate Page

Click anywhere on the document to type text or drag shapes into place.

Export PDF

Click Export Edited PDF to download your vectorized, modified document instantly.

Privacy & In-Browser Execution Guarantee

100% In-Browser Privacy. Your documents are never uploaded to remote servers. All vector annotations are embedded in local browser memory.

Frequently Asked Questions

How does NEOKYRU compare to iLovePDF for this tool?

Unlike iLovePDF which transmits your private documents to third-party cloud servers with strict file size limits and paywalls, NEOKYRU runs 100% client-side in your browser via WebAssembly. Your files never leave your computer, there are no file size caps, zero queue wait times, and it is 100% free with no registration required.