When using Highlight Form Fields, the most common questions are about unavailable buttons, removing effects, and scanned PDF editing limits; this section includes 3 common questions and a 3-term glossary.
FAQ
Why is the Highlight button gray and unavailable?
- Make sure the PDF file is open and you are on the Edit tab.
- Click Edit Content, then switch to Text Editing mode.
- Select the target text and check whether the Highlight button becomes available.
- If it is still unavailable, check whether the file is a scanned PDF or whether the current account has the required membership access for PDF editing.
How do I remove a highlight that I already added?
- Open Edit Content and Text Editing mode.
- Select the text that already has the highlight effect.
- Click Highlight again.
- Confirm that the text returns to the non-highlighted state.
Why can’t I highlight text directly in a scanned PDF?
- Content in a scanned PDF is usually image-based rather than directly editable text.
- Run OCR first to convert the content into editable text.
- After OCR is complete, return to Text Editing mode.
- Select the text and apply the highlight effect.
Glossary
| Term | Definition |
|---|---|
| Edit Content | The WPS PDF entry used to switch into a mode for editing existing content in the PDF body. |
| Text Editing | A mode in PDF editing for selecting text, adjusting formatting, and applying text styles. |
| OCR | A process that converts text in scanned files or images into editable text. |