Modify PDF text, add images, draw shapes, and edit documents directly in your web browser. No software installation, no registration, and 100% free.
Add text, images, drawings, and annotations â all in your browser
Dudi PDF Editor is a powerful, 100% free online PDF editor that runs entirely in your web browser. Whether you need to add text to a PDF, insert images, draw annotations, or highlight important sections â this tool lets you do it all without installing any software, creating an account, or paying any subscription fee.
Unlike other online PDF editors, your files are never uploaded to any server. All processing happens locally on your device using advanced JavaScript libraries, ensuring complete privacy and security of your confidential documents.
Our PDF Editor provides comprehensive editing tools: Add text anywhere on PDF pages with customizable font size and color, draw freehand annotations with adjustable brush size, highlight important sections with semi-transparent markers, insert images and logos onto any page, and navigate through multi-page documents. All edits are non-destructive to the original PDF content and can be saved as a new PDF file.
Click the "Text" tool in the toolbar, then click anywhere on the PDF page where you want to add text. A text box will appear where you can type your content. Use the color picker to change text color and adjust as needed. You can resize the text box by dragging its corners. Click outside the text box or switch to another tool to finalize the text. You can add multiple text boxes on the same page.
Yes! The Draw tool lets you sketch freehand on any PDF page using your mouse or touch screen. Adjust the brush size with the slider (1-20 pixels) and choose any color from the color picker. The Highlight tool creates semi-transparent strokes perfect for marking important text. Both tools support smooth drawing and work great for signatures, notes, circles, arrows, and other annotations.
Click the "Image" button in the toolbar and select an image file from your device. The image will be placed on the current page at the center. You can then drag it to reposition or use the resize handles to adjust its size. Images are embedded directly into the PDF when you save, maintaining good quality. Supported formats include JPG, PNG, and WEBP.
Absolutely! Use the navigation buttons (Prev/Next) to move between pages. Each page maintains its own separate annotations, so you can edit different pages independently. The page counter shows your current position (e.g., "Page 3 of 10"). All edits across all pages are preserved when you save the final PDF document.
100% safe! All editing happens locally in your browser using JavaScript and HTML5 Canvas. Your PDF files are never uploaded to any server or third-party service. The pdf.js library renders pages for viewing, and pdf-lib library saves your edits back to PDF format. Everything processes on your device, ensuring complete privacy and security of your confidential documents.
Yes, 100% free with no hidden charges, no subscription, no signup, and no watermarks. You can use it unlimited times, on unlimited files, without any restrictions. Dudi PDF Editor is supported by minimal non-intrusive ads that keep the tool free for everyone.
Yes! Dudi PDF Editor is fully responsive and works on smartphones, tablets, laptops, and desktops. You can edit PDFs on Android, iOS, Windows, macOS, and Linux â all you need is a modern web browser. Touch gestures are supported for drawing and annotating.