How to fill in a PDF for free
Add answers, ticks and a signature to a PDF, including forms with boxes that cannot be clicked.
Read the guideAdd shapes to a PDF online for free
Add rectangles, circles, lines, arrows, checkmarks, or crosses to your PDF, then customize their appearance.
Use this tool for free as often as you need. The document is processed on your device so its contents remain under your control.
or drop the file herePDF · Up to 50 MB per file
How it works
- Open the PDF you want to mark up.
- Choose a shape and draw it on the page.
- Adjust its appearance before exporting.
What you can do
- Rectangles, squares, circles, lines and arrows
- Checks and crosses for review documents
- Border, fill and line thickness controls
See the tool in action
Try the example
Fictional documents: three practice pages and an appendix, with no personal data.
Page 1: draw a rectangle around the date with a transparent fill to keep it readable. A rectangle does not delete text underneath.
What does this PDF tool do?
Each shape can be moved and resized. Depending on the shape, you can also adjust its border, fill, thickness or arrow style.
Document processing happens in your browser. SunPDF does not upload your PDF to a server for editing. Closing or refreshing the tab ends the current session.
When to use this tool
Shapes draw attention to an area or add a visible instruction without deleting the content underneath.
How to check the result
Check colour, thickness, and contrast, then zoom into every shape to make sure it does not cover important information.
Guides for this tool
Follow the steps and checks to make before saving your document.