PDF Editor Studio

A free online PDF editor that lets you add text, annotations, and highlights to PDF files, then download them instantly.

Request Feature / Support

2,580+

Total Calculations Run

< 15ms

Browser Execution Speed

100%

Client-Side Privacy

4.9 / 5.0

User Satisfaction

AI Web Tool Generator

Build Your Own Custom Web Calculator in Seconds

Type what tool or calculator you need below. Our AI will build it instantly for your site.

About This Tool

This online PDF editor provides a fully functional interface for editing PDF documents directly in your browser. Upload any PDF file, add text annotations, highlight important sections, draw shapes, and then download the edited version immediately. The tool uses PDF.js for rendering and jsPDF for generating the edited PDF, ensuring a smooth editing experience without requiring server-side processing. All editing happens client-side for privacy and speed.

Save your calculation history with a free account

How to Use

Click the upload area to select a PDF file from your device.
Wait for the PDF to load in the preview area.
Use the toolbar to select editing tools (text, highlight, draw).
Click on the PDF to add annotations.
Adjust colors and sizes using the controls.
Click 'Download Edited PDF' to save your changes.

Frequently Asked Questions

Find Quick Answers

Is this PDF editor really free?

Yes, this tool is completely free to use with no hidden charges or registration requirements.

Do my PDF files get uploaded to a server?

No, all PDF processing happens entirely in your browser using JavaScript. Your files never leave your device.

What editing features are available?

You can add text annotations, highlight text, draw shapes (rectangles, circles), and change colors. More advanced features like image insertion may be added in future updates.

What PDF versions are supported?

The tool supports PDF versions 1.0 through 1.7. Encrypted or password-protected PDFs cannot be edited.

Can I edit multiple pages?

Yes, you can navigate between pages using the page controls and edit each page individually.

Need to run multiple calculations?

Create a free account today to unlock unlimited daily runs, access advanced parameters, save your history, and request custom features.

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