Free PDF Editor - Add Text & Annotations to PDF Online
Annotate, highlight, draw, and add text to any PDF page directly in your browser. A lightweight PDF editor with no installs and no uploads.
What is Edit PDF?
Our free browser-based PDF editor lets you annotate and modify PDF pages without installing any software. Draw shapes, add text boxes, highlight areas, sketch freehand notes, and draw arrows — all layered on top of your PDF pages as interactive annotations.
The tool uses pdf.js to render each page as a canvas preview, then layers Fabric.js on top to provide a rich annotation interface. When you're done editing, the annotations are rasterized and embedded permanently into the PDF using pdf-lib, producing a standard PDF file with all your changes baked in.
This is the quick solution for marking up documents before sharing, adding comments to client work, filling in simple form fields manually, annotating technical drawings, or adding notes and pointers to presentations. No desktop app required.
All editing happens locally in your browser. Your PDF pages render client-side with pdf.js, and the final annotated PDF is generated client-side with pdf-lib. Nothing is uploaded or processed on any external server.
Powerful Features
Everything you need in one amazing tool
Text Boxes
Add typed text anywhere on any page. Choose font size and color.
Freehand Drawing
Draw freehand annotations, underlines, or sketches directly on pages.
Shapes
Add rectangles, circles, and lines to highlight areas or create diagrams.
Highlight
Highlight text areas with semi-transparent color overlays for emphasis.
No Upload Required
Entire editing session runs in your browser. Files never leave your device.
Annotations Embedded
Annotations are permanently embedded in the PDF output via pdf-lib.
How It Works
Get started in 4 easy steps
Upload Your PDF
Select or drag your PDF. Pages render as editable canvases via pdf.js.
Add Annotations
Select a tool (text, draw, shape) and annotate pages as needed.
Review Changes
Navigate pages to review all your annotations before saving.
Download Edited PDF
Click Save. pdf-lib embeds annotations and downloads your edited PDF.
Why Choose Our Edit PDF?
Stand out from the competition
Completely Private
Your document and annotations never leave your device. 100% client-side.
Permanently Embedded
Annotations bake into the PDF and display in every viewer including Adobe Reader.
Works on Mobile
Annotate PDFs on your phone or tablet using touch — no desktop required.
No Install Needed
No Adobe Acrobat, no Office 365. Just open the tool and start editing.
Multiple Annotation Types
Text boxes, shapes, freehand drawing, and highlights all available in one unified tool.
Free & Private
No subscription, no account. Annotated PDFs are generated locally in your browser.
Perfect For
See how others are using this tool
Document Markup
Mark up contracts, proposals, and reports with comments before sending back.
Client Feedback
Annotate design mockups or wireframe PDFs with feedback notes and highlights.
Study Notes
Highlight key passages and add margin notes to academic PDF papers.
Presentation Prep
Add speaker notes, arrows, and callouts to PDF presentation slides.
Form Annotation
Fill in non-interactive PDF forms manually by placing text boxes over each form field.
Contract Markup
Add inline comments and redline markup to contracts before returning them to senders.
Frequently Asked Questions
Everything you need to know about Edit PDF
Yes. When you save, pdf-lib rasterizes and embeds all annotations permanently. They cannot be removed without re-editing.
This tool adds annotations on top of existing content. Direct text editing of the original PDF content is not supported in the browser without complex font-handling.
No. Rendering and annotation both happen locally in your browser using pdf.js and Fabric.js.
All modern browsers — Chrome, Firefox, Edge, Safari. Both desktop and mobile versions work.
Yes. Use Ctrl+Z (or Cmd+Z on Mac) or the Undo button to reverse annotations before downloading.
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