Add text comments and notes to your PDF files online for free. Click anywhere on your PDF to add annotations that work in any PDF reader.
Click to upload or drag and drop your PDF file here
为保护您的隐私，所有处理均直接在您的浏览器中进行。这意味着：
Click "Select PDF File" or drag and drop your PDF into the selection area. Your file is processed locally for privacy.
Click anywhere on the PDF page where you want to add a comment. A marker will appear, and a dialog will open for you to enter your text.
Type your comment text in the modal dialog. You can add multiple comments on different pages by navigating and clicking.
Click "Save PDF with Comments" to embed your comments as standard PDF annotations. Download your annotated document.
Click anywhere on your PDF pages to add text comments. Visual markers show where comments are placed.
All PDF processing happens in your browser. Your files are never uploaded to a server, ensuring 100% privacy.
Creates standard PDF comment annotations that can be viewed in any PDF reader like Adobe Acrobat or Preview.
Navigate through all pages of your PDF and add comments anywhere. Each comment is tracked by page number.
View all added comments in a list with page numbers. Delete any comment before saving if needed.
Add comments to PDFs on any device with a modern browser, including desktop, tablet, and mobile.