PDF Editor
Edit PDF files online free. Add text, annotations, highlights, and drawings to PDF documents directly in your browser.
What can I do with this online PDF editor?
You can add text annotations, highlight text, draw shapes (rectangles, ellipses, lines), add freehand drawings, and erase annotations on your PDF documents. It also supports undo/redo and zoom for precise editing.
Is my PDF data safe and private?
Yes, all editing happens locally in your browser. Your PDF files are never uploaded to any server. The entire process is 100% client-side, ensuring your data remains completely private and secure.
Can I edit the original text content in a PDF?
This editor adds annotations on top of the PDF as an overlay layer. It does not modify the original text content, but you can add new text, highlights, shapes, and drawings as annotation layers on top of the existing content.
How do I save my edited PDF?
Click the "Save PDF" button to download your annotated PDF file. All annotations will be embedded directly into the PDF, which can then be opened in any standard PDF reader.
Does this PDF editor support Chinese and other languages?
Yes, you can add text annotations in any language, including Chinese, Japanese, Korean, Arabic, and more. The editor uses your browser's native font rendering, which fully supports Unicode characters from all languages.
Is this online PDF editor free to use?
Yes, this is a completely free online PDF editor. No registration required, no watermarks added, no file size limits, and all features are available at no cost.
How do I add text to a PDF?
Select the text tool from the toolbar, click on the location in the PDF where you want to add text, and start typing. You can adjust the text position by dragging it to the desired location.
Can I highlight text in a PDF?
Yes, use the highlight tool to mark important passages in your PDF. You can choose different highlight colors and adjust the opacity to make your annotations stand out.
How do I draw shapes on a PDF?
Use the shape tools to draw rectangles, ellipses, or lines on your PDF. Click and drag to create the shape, and you can resize or reposition it as needed.
Does this editor work on mobile devices?
Yes, this PDF editor is fully responsive and works on smartphones, tablets, and desktop computers. The interface adapts to your screen size for optimal editing experience.
Can I undo mistakes while editing?
Absolutely. The editor supports unlimited undo and redo operations, so you can easily correct any mistakes during the editing process.
What PDF file sizes are supported?
Since all processing happens in your browser, the supported file size depends on your device's available memory. Most standard PDF documents can be edited without any issues.
How to Use PDF Editor
PDF Editor lets you add text, annotations, highlights, and drawings to a PDF directly in your browser. Files are edited locally, so nothing is uploaded to any server.
- Open the PDF you want to edit in the tool.
- Pick a tool such as text, highlight, or drawing, then click on the page to place your content.
- Use the 'Color' control to set the color of your text or drawings.
- Adjust 'Size' to change the stroke width or text size of the selected element.
- When adding text, choose the typeface with the 'Font' setting before you type.
- Save the edited PDF back to your device when you finish.
Match 'Color' to an existing color in the document so your annotations blend in instead of standing out with default black or red.
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