Edit PDF file
Add text, images, shapes, draw, and highlight on your PDF pages.
or drop PDF file here
Supports single PDF • 100% Local process in your device
How to Edit PDF Online
Add text, images, and annotations to your PDF documents in four simple steps, with 100% local processing to protect your privacy.
1
Upload your PDF
Click the Select PDF File button or drag and drop your document. CedarPDF processes your file entirely offline in your browser — nothing is uploaded to any server.
2
Add Text, Images & Shapes
Use the top toolbar to add various elements:
- Text: Add custom text with various fonts, sizes, and colors
- Image: Insert images or logos anywhere on the page
- Shapes & Symbols: Draw rectangles, circles, arrows, checkboxes, and more
- Draw: Freehand draw with customizable stroke styles and colors
3
Edit, Annotate & Highlight
Modify your document with powerful annotation tools:
- Highlight & Underline: Emphasize important text directly from the PDF content
- Whiteout: Redact or cover sensitive information
- Drag & Resize: Precisely position and scale any element you add
- Undo/Redo: Easily revert mistakes with full history support
4
Download Edited PDF
Click Download to generate your edited PDF instantly. All changes are burned directly into the PDF at the binary level, ensuring professional quality that matches your preview exactly.
Why Choose CedarPDF for Editing?
100% Private & AI-Proof Security
Unlike cloud-based editors that upload your files to servers, CedarPDF processes everything 100% locally in your browser. Your sensitive documents never leave your device, ensuring complete zero-knowledge privacy.
Comprehensive Editing Tools
Everything you need in one place: add text, insert images, draw freehand, add shapes, highlight text, whiteout sensitive data, and create professional callouts. No need to switch between multiple apps.
Pixel-Perfect Precision
We use a unified coordinate system that maps your screen directly to the PDF's native points. This guarantees pixel-perfect placement and proportionally accurate resizing. What you see in the preview is exactly what you get in the final PDF.
Completely Free & Unlimited
No hidden fees, no email or registration required, and no daily limits. Edit as many PDFs as you need, regardless of file size or page count. Enterprise-grade privacy protection and professional features, completely free.
When Do You Need to Edit PDFs?
From students to professionals, CedarPDF helps people edit documents effortlessly and securely. Here are some common scenarios:
For Students & Researchers
Academic Papers & Assignments
- Add text notes or highlights to research papers before submission
- Insert diagrams, charts, or images into assignment PDFs
- Fill out forms or add signatures to academic documents
- Best of all: It's completely free for unlimited student use!
For Professionals & Business
Contracts & Reports
- Redact sensitive information from contracts before sharing
- Add company stamps, logos, or approval marks to reports
- Fill out and annotate invoices, NDAs, or HR documents
- Best of all: Your confidential documents never leave your computer.
For the AI & Big Data Era
Protect Data from AI Scrapers
- Prevent AI Training: Ensure your edited documents are never uploaded to cloud servers where they could be scraped and used to train generative AI models
- Zero-Knowledge Processing: 100% client-side execution guarantees that no third-party API or AI agent ever has access to your private information
- Best of all: Enterprise-grade privacy protection, completely free and directly in your browser.