PDF Editing Issues

How to Draw or Mark Areas on a PDF Form

Phi Hung VoPhi Hung Vo Nov 3, 2026 868 views

Question details

The user needs to know how to draw or mark specific areas directly on a PDF form, such as identifying locations of pain on a body diagram for a health intake form.

How to Draw or Mark Areas on a PDF Form
Product
PDF Forms
Device & OS
not provided
Scenario
Filling out digital intake forms that require visual annotations rather than text input, such as circling or drawing on an embedded diagram.
Observed behavior
Users require instructions on accessing and utilizing drawing tools within a PDF viewer to successfully mark up the document.
Before you start

Check the document properties to ensure the PDF is not restricted by the author, as locked PDFs may disable the commenting and drawing tools required for markup.

Solution 1Recommended

Use Built-in Commenting and Drawing Tools

The most straightforward way to mark up a PDF diagram is to use the standard drawing features located in the commenting toolbar of your PDF reader.

PDF readers like Adobe Acrobat treat hand-drawn marks as annotations. By accessing the comment tools, you can freely draw lines, circles, and shapes over existing form content.

1
Open Comment Tools

Launch your PDF form in Adobe Acrobat or your preferred PDF reader. Navigate to the top menu, click on 'Tools', and select 'Comment'.

2
Select a Drawing Tool

In the commenting toolbar that appears, locate and click on the 'Drawing Tools' icon. You can typically choose between a pencil for freehand drawing or shapes like circles and rectangles.

3
Mark the Diagram

Click and drag your cursor over the specific areas on the form's diagram (e.g., the body areas on an intake form) to leave your desired marks.

4
Save the Document

Once you have finished marking the diagram, go to 'File' > 'Save' to ensure your drawings are securely attached to the form before submission.

Use Built-in Commenting and Drawing Tools
Tip: You can change the color and thickness of your drawing by right-clicking the mark, selecting 'Properties', and adjusting the appearance settings.
Efficient PDF Editor

Easily Draw and Mark Up PDFs with WPS Office

WPS Office offers a robust and free PDF editor equipped with intuitive drawing tools, making it incredibly simple to annotate diagrams, mark up text, and fill out complex forms without hassle.

  1. 1. Open the PDF: Launch WPS Office and open your PDF form containing the diagram you need to mark.
  2. 2. Navigate to the Comment Tab: Click on the 'Comment' tab located in the top ribbon to reveal the annotation tools.
  3. 3. Select the Graffiti Tool: Click on the 'Graffiti' (freehand drawing) icon or select a shape tool to begin marking.
  4. 4. Draw and Save: Draw directly onto the body diagram or designated area, then click the Save icon in the top left corner to preserve your annotations.
Access a free and responsive 'Graffiti' tool for smooth freehand drawing on any PDF.Highly compatible with all standard Adobe Acrobat PDF formats and form fields.Customize drawing colors and stroke sizes with a user-friendly interface.Lightweight application that performs flawlessly on Windows, Mac, and mobile devices.
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Frequently Asked Questions

Why are the drawing tools grayed out on my PDF form?

If the drawing and commenting tools are unavailable, the document likely has security restrictions applied by the creator to prevent modifications. You will need to request an unlocked version of the form.

Can I erase a drawing if I make a mistake?

Yes. Because drawings are added as comments, you can simply click on the drawn line or shape to select it, and then press the Delete key on your keyboard to remove it.

Will my drawings appear when the form is printed?

Yes, but you must ensure your print settings are configured correctly. In your print dialogue box, make sure the option to print 'Document and Markups' or 'Document and Comments' is selected.

Can I draw on a PDF form using my mobile phone?

Yes, mobile PDF readers, including the WPS Office mobile app, include freehand drawing tools. Simply open the file, tap the edit or annotate icon, and use your finger or a stylus to draw on the screen.