PDF Conversion Issues

Fix Unwanted Boxes Around Arrows When Exporting Word to PDF

Elise WilliamsElise Williams Nov 2, 2026 868 views

Question details

The user wants to eliminate unexpected box artifacts that appear around arrow shapes after converting a document to a PDF file.

How to Remove Unwanted Boxes Around Arrows When Exporting Word to PDF
Product
Microsoft Word
Device & OS
not provided
Scenario
Exporting or saving a text document containing arrows as a PDF file.
Observed behavior
Unwanted boxes appear around the arrows in the resulting PDF, despite the arrows rendering correctly with no boxes in the original file.
Before you start

Open your document and press Ctrl+P to view the Print Preview; if the boxes appear here, it is a document formatting issue, but if they only appear in the final PDF, it is an export rendering issue.

Solution 1Recommended

Check and Remove Shape Outline and Background Fill

If the boxes are visible in Print Preview, they are likely caused by hidden shape outlines, text box backgrounds, or shadow settings that need to be removed.

Often, shapes or text boxes have a default white background fill or a transparent outline that behaves unpredictably during export.

Ensuring these properties are explicitly set to 'None' prevents the PDF converter from rendering them as solid boxes.

1
Select the Arrow Shape

Click directly on the arrow or the text box containing the arrow in your document to select it.

2
Access Shape Format Options

Navigate to the 'Shape Format' or 'Drawing Tools Format' tab that appears on the top ribbon.

3
Remove Shape Fill

Click on 'Shape Fill' in the Shape Styles group and select 'No Fill' from the dropdown menu.

4
Remove Shape Outline

Click on 'Shape Outline' in the same group and select 'No Outline' to ensure no border is drawn around the bounding box.

Check and Remove Shape Outline and Background Fill
Check Shadow Effects: Also check the 'Shape Effects' menu. If a shadow or glow is applied to a transparent bounding box, the PDF exporter might render the entire box.
Seamless PDF Export

Convert Documents to PDF Flawlessly with WPS Office

If you continue experiencing rendering artifacts when exporting documents, try WPS Office. It features a highly accurate, built-in PDF converter that ensures shapes, transparent backgrounds, and arrows export exactly as they appear on your screen.

  1. 1. Open Your Document: Launch WPS Writer and open the document containing your arrows.
  2. 2. Access the PDF Exporter: Click on 'Menu' in the top left corner, navigate to 'Export to PDF', and select it.
  3. 3. Export the File: Adjust your export settings in the prompt if necessary, then click 'Export to PDF' to save your file flawlessly without unwanted boxes.
Flawless document-to-PDF conversion without formatting lossFully compatible with Microsoft Word (.docx) formatsAccurate rendering of shapes, text boxes, and transparent layersLightweight, fast, and free to use
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Frequently Asked Questions

Why do transparent images sometimes show a black or white box in a PDF?

This happens due to PDF flattening or rendering issues. When a document is converted to PDF, some basic conversion engines struggle with alpha channels (transparency) on drawn shapes or PNGs, replacing the transparent area with a solid default background color.

Are arrows inserted as text symbols different from drawn shapes?

Yes. Arrows inserted via 'Insert > Symbol' are treated as text characters. They scale perfectly and do not have bounding box layers. Drawn arrows (via 'Insert > Shapes') have fill, outline, and layer properties that can sometimes cause export errors.

Does the 'Optimize for Minimum size' setting affect how shapes look in a PDF?

Yes. Choosing 'Minimum size (publishing online)' compresses images and simplifies drawing layers to reduce file size. This aggressive compression can sometimes create rendering artifacts, such as unexpected boxes. Try exporting with 'Standard (publishing online and printing)' instead.