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PDF Editing Issues

How to Change Apple Pencil Thickness and Color in Acrobat Reader

Olivia MillerOlivia Miller Oct 19, 2026 869 views

Question details

The user needs to adjust the color, thickness, and opacity of annotations made with an Apple Pencil in Adobe Acrobat Reader on an iPad.

How to Change Apple Pencil Thickness and Color in Acrobat Reader for iPad
Product
Adobe Acrobat Reader
Device & OS
iPadOS
Scenario
Annotating or drawing on a PDF document using an Apple Pencil.
Observed behavior
The user is looking for the settings to modify drawn lines, or the context menu required to change these properties is failing to appear when tapping the drawings.
Before you start

Ensure your Apple Pencil is properly paired and charged, and check that your PDF document is not restricted or locked for editing.

Solution 1Recommended

Modify Line Properties via the Context Menu

Access the properties menu directly from the existing drawing to adjust its appearance.

1
Select the drawing

Open your PDF document and tap on the existing pencil drawing you want to modify to display its context menu.

2
Choose a property to change

From the pop-up menu, select 'Thickness', 'Color', or 'Opacity'.

3
Apply adjustments

Adjust the slider or pick a new color from the palette to instantly update the appearance of your Apple Pencil stroke.

Modify Line Properties via the Context Menu
WPS Office for iPad

Easily Annotate PDFs with Apple Pencil in WPS Office

WPS Office provides a highly optimized PDF editing experience for iPad users. Enjoy seamless Apple Pencil integration with robust, glitch-free toolbars to instantly customize pen colors, thickness, and opacity.

  1. 1. Open your PDF in WPS Office: Launch the WPS Office app on your iPad and open the PDF document you wish to annotate.
  2. 2. Enter Annotation Mode: Tap the 'Edit' or 'Annotate' tab at the top of the screen and select the Pen tool.
  3. 3. Customize your pen properties: Tap the Pen icon again to pull up the formatting menu, where you can easily adjust the stroke thickness, color palette, and opacity.
  4. 4. Draw with your Apple Pencil: Start writing or drawing on the document. Your custom settings will apply immediately to your new strokes.
Smooth and highly responsive Apple Pencil integrationIntuitive toolbars to adjust thickness, color, and opacity without missing menusFull compatibility with all standard PDF files and Microsoft Office document formatsLightweight, fast, and completely free to download
microsoft office alternative - wps office

Frequently Asked Questions

Why isn't the context menu appearing when I tap my pencil drawing in Acrobat Reader?

This is often due to a temporary rendering glitch in the iOS app. You can usually resolve it by saving the document, force-closing the Acrobat Reader app from the iPad's App Switcher, and reopening the file.

Will I lose my PDF files if I uninstall Acrobat Reader to fix bugs?

Yes, if you uninstall the app on iOS, all locally stored documents, preferences, and app data will be permanently erased. Always back up your files to a cloud service like iCloud or Google Drive before reinstalling.

Can I set a default color and thickness for my Apple Pencil before I start drawing?

Yes. When you select the Comment or Pen tool from the toolbar, you can tap the tool's icon to choose your preferred color, opacity, and thickness before making any strokes on the PDF.