Fix Apple Pencil Highlighter Zooming Instead of Highlighting in Acrobat
Question details
The user is trying to highlight text in a PDF document using an Apple Pencil, but the app triggers a zoom gesture instead.
- Product
- Adobe Acrobat
- Device & OS
- iPadOS
- Scenario
- Highlighting text and adding annotations in a PDF file using an Apple Pencil.
- Observed behavior
- Instead of selecting and highlighting text, dragging the Apple Pencil causes the document to zoom in. This behavior happens inconsistently, sometimes working normally on other pages.
Ensure your Apple Pencil is adequately charged, fully paired with your iPad, and that the tip is screwed on securely before troubleshooting app-specific behaviors.
Troubleshoot Document Specificity and Update Software
Determine if the zooming glitch is isolated to a single PDF file and update your iPadOS and Acrobat app to resolve known software bugs.
In many cases, gesture misinterpretation on the iPad is caused by temporary glitches in the application or formatting issues within a specific PDF file. Checking different files helps isolate the root cause.
Open several different PDF documents in Adobe Acrobat. Try using the Apple Pencil highlighter on each. If the zooming issue only occurs in one specific file, that document may have restrictive formatting or missing text layers.
Open the App Store on your iPad, tap your profile icon, and scroll down to pending updates. If Adobe Acrobat has an available update, tap 'Update' to install the latest bug fixes.
Navigate to your iPad's Settings, tap 'General', and select 'Software Update'. If an update is available, download and install it to ensure full Apple Pencil compatibility.
If the problem continues across all files, take a screen recording of the zooming behavior and contact Adobe Support. Provide them with your exact iPadOS version, Acrobat app version, and iPad model.
Highlight PDFs Smoothly with WPS Office on iPad
Avoid frustrating zooming glitches and easily highlight, annotate, and edit your PDFs using WPS Office, fully optimized for precise Apple Pencil inputs.
- 1. Install WPS Office: Download and install the free WPS Office app from the Apple App Store on your iPad.
- 2. Open your PDF: Launch WPS Office and open the PDF document you want to read or annotate.
- 3. Access annotation tools: Tap the 'Annotation' or 'Edit' tab located at the top menu bar to reveal the PDF markup tools.
- 4. Highlight with Apple Pencil: Select the Highlighter tool, customize your color, and use your Apple Pencil to smoothly highlight text without accidental zooming.
Frequently Asked Questions
Why does my Apple Pencil navigate the PDF instead of drawing or highlighting?
This usually happens if the active tool in the PDF app is set to the hand or pan tool instead of the markup tool. It can also occur if the app fails to automatically switch to stylus mode. Ensure the highlighter icon is actively selected in your toolbar.
Can a specific PDF file cause Apple Pencil glitches?
Yes. If a PDF is composed entirely of images (like a scanned document) without an underlying text layer, the highlighter tool cannot snap to words. As a result, the app may misinterpret the pencil drag as a standard touch gesture like zooming.
How do I turn on palm rejection for PDF editing on an iPad?
Modern PDF editors like WPS Office and Acrobat typically detect the Apple Pencil automatically and enable palm rejection by default. You can also enforce this by going to your iPad Settings > Apple Pencil and toggling on 'Only Draw with Apple Pencil'.
