How to Highlight Text Inside a PDF Form Field
Question details
The user wants to know if and how they can highlight text that has been typed into an interactive PDF form field.
- Product
- Adobe Acrobat
- Device & OS
- not provided
- Scenario
- Reviewing, marking up, or annotating a completed interactive PDF form.
- Observed behavior
- The standard highlighting tool does not work on editable text while it remains inside an active, interactive PDF form field.
Before proceeding, ensure you have saved a backup copy of your interactive PDF form. The solution involves flattening the document, which will make the form fields permanently uneditable.
Flatten the PDF Form to Enable Highlighting
Since interactive form fields block standard markup tools, flattening the PDF converts the form inputs into standard page text, allowing you to use the Highlight tool normally.
PDF form fields act as interactive overlays on top of the document. Standard annotation tools cannot interact with the text inside these active fields. By flattening the document, you merge the typed text directly into the main PDF layer.
Go to 'File' > 'Save As' and save a separate copy of your filled-out PDF form. This ensures you retain an editable version for future updates.
Navigate to 'File' > 'Print'. In the printer dropdown menu, select 'Microsoft Print to PDF' or 'Adobe PDF'. Click 'Print' and save the new file. This creates a flattened version of your document.
Locate and open the newly saved flattened PDF document.
Select the 'Highlight' tool from your commenting or markup toolbar, then click and drag over the text that was previously inside the form field to highlight it.
Highlight and Annotate PDFs Effortlessly with WPS Office
WPS Office provides a comprehensive PDF toolkit that allows you to easily view, fill, flatten, and annotate PDF forms. Use WPS PDF to quickly manage your documents and apply highlights without hassle.
- 1. Open the PDF in WPS: Launch WPS Office and open your filled interactive PDF form.
- 2. Print as a flattened PDF: Click 'Menu' > 'Print' and choose 'WPS PDF' or 'Microsoft Print to PDF' as the printer to flatten the document, then save it.
- 3. Highlight your text: Open the newly flattened file, go to the 'Comment' tab, select the 'Highlight' tool, and drag over your text to mark it.
Frequently Asked Questions
Can I highlight text without flattening the PDF form?
Generally, no. Interactive form fields act as dynamic overlays that block standard text markup tools like the highlighter. You must flatten the form first to convert the field inputs into standard, selectable page text.
Will flattening a PDF delete my form data?
No, flattening does not delete your typed data. It permanently merges the visible text into the document's background layer, making it uneditable but entirely visible and ready for highlighting.
How do I unflatten a PDF if I need to edit the form again?
Once a PDF is flattened and the file is saved, the process cannot be reversed. This is why it is highly recommended to 'Save As' and create a separate, flattened copy while keeping the original interactive form intact.
