Annotate PDF Online
Size up to 100 MB in PDF
How to annotate a PDF file
Drag & drop your PDF or click the + button to upload it
Make your changes — text, shapes, or highlights
Download the edited document to your device
Trusted and certified by industry leaders
What makes our tool the best PDF annotator?
Digital editing tools
Whether for personal use or professional presentations, our tool offers all the features you need to make your mark.
A powerful online alternative
PDF Guru is a web app, which means you don't need to install any software on your PC to draw on PDF documents.
Work with PDFs 24/7
You can leave comments in PDF documents, save them, and then find the files securely stored in your account.Intuitive interface
Making notes on a PDF has never been easier — every step is intuitive and simple, requiring no technical skills.Add text however you want
With our PDF editor, you can not only add notes, but also write on PDF pages with the pencil tool, insert text, and create text boxes for other users to fill.Highlight important text
Easily draw attention to crucial information in your documents. Our PDF annotator allows you to highlight text with just a few clicks.
Helping you annotate PDF files anywhere
At PDF Guru, we aim to change how you edit a PDF document online. Whether you need to add images or text to PDF, each feature is thoughtfully designed and rigorously tested to ensure ease of use and efficiency. We understand your needs and create tools that boost your productivity.
What users are saying about our online tool
Frequently asked questions
What is a PDF annotator?
A PDF annotator is a tool that allows you to edit PDF files by adding notes and comments, either for personal use or to share with others. Here's what you can do with it:
- Comment on PDF documents;
- Easily add text by typing or using the PDF markup tool to draw your notes freehand;
- Add shapes to PDFs;
- Add images to PDFs;
- Create signatures;
- And much more.
What is the best way to annotate PDF?
Here's how you can add comments to PDF files using our tool:
- Scroll to the top of the page.
- Click the + button or drag & drop your file into the upload area.
- Select More Tools → Note.
- Add your text, style the doc — add arrows to PDF, choose a shape, etc.
- After making your corrections, click 'Done' and choose a file format.
- Click the 'Download' button to save your annotated document.
How to markup a PDF?
In the editor window, select the pencil icon from the toolbar to annotate on PDF. You can also add text boxes, shapes, highlights, and more for a comprehensive edit.
How to highlight text in PDF?
To highlight PDF text, select the corresponding tool in our online PDF annotator. It will allow you to easily select and highlight any section of the document.
Whether you draw on a PDF, add text to PDF or choose the shape you need — the tool's interface ensures an easy and clear flow.
What platforms does PDF Guru's annotation tool support?
You can annotate PDF on iPad, Mac, an Android phone or any other device and operating system — our tool operates online. Simply check your internet connection, open our tool in your browser, upload your file, and choose the preferred tool.
