About us
English
Add Comments to PDF
Easily add comments and notes to PDF files online
or drag and drop a file
Supports PDF and image file formats (maximum 100MB)
By using the product, you agree to our Terms of Service and have read our Privacy Policy.
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248M
Registered Users
5B
Notes Created
2M
Notes Created Daily
Frequently Asked Questions
Upload your PDF file and use the text annotation tool to add comments. Simply click where you want to insert the comment, type your text, and adjust as needed.
Yes, you can add notes to a PDF for free using our online tool. No software installation is required—just upload the PDF and add notes.
You can insert text notes during the annotation process. Use the text annotation tool to manually add text comments, similar to copying content from a text file.
Yes, you can add math equations as annotations by typing them with the text tool. Note that the tool doesn't automatically format equations, so you'll need to manually input symbols and characters.
To annotate, upload your PDF and use tools like pen, text annotation, and highlights. These allow you to draw, add comments, and highlight areas in the document.
Yes, upload your PDF snapshot and use the text annotation tool to write comments directly on the snapshot, just like on any other PDF page.
Yes, first convert your PNG image to a PDF format. Once uploaded as a PDF, use the text annotation tool to add comments.
Yes, after adding all your comments, you can download the annotated PDF file. Your comments will be embedded in the document.
Our tool supports PDFs up to 100 MB, which suffices for most documents. Large PDFs can be annotated as long as they don't exceed this size.
Ensure that annotations are embedded before printing. Our tool saves comments as part of the PDF, but some PDF readers may need an update to display them correctly.
No, our tool is accessible only on desktop browsers. For mobile use, you need a different app or tool.
No, this tool does not support text extraction from PDFs. It focuses on adding annotations, not editing or extracting text.
No, the tool allows annotation of one PDF file at a time. Annotate, download, and then start a new session for another file.
Some PDF converter tools offer annotation features, but our tool is specialized in direct comment insertion, simplifying the process without a converter.
You can customize text annotations with various text properties like font, size, and color to ensure each comment meets your requirements.