Office for Mac Issues

Fix Word for Mac Not Saving Replaced Header or Footer Image

Steven Parker Oct 23, 2026 868 views

Question details

The user needs to permanently replace an existing image in a document's header or footer, but the changes are not being retained after the document is saved.

How to Fix Word for Mac Not Saving a Replaced Header or Footer Image

Product: Word for Mac
Device & OS: Mac
Scenario: Editing a document created by someone else to update the header or footer image.
Observed behavior: The replacement image looks correct in the header or footer while editing, but the original image returns after the document is saved and reopened.

Before you start

Check if the stubborn image in your document's background was originally inserted as a watermark rather than a standard inserted picture, as watermarks have specific saving behaviors in Word.

Solution 1Recommended

Replace the Image via the Watermark Menu

Use this solution if replacing the image directly in the header or footer fails. It ensures the original watermark settings are properly overwritten.

In Word for Mac, images inserted as watermarks are anchored in the header or footer. If you try to replace a watermark by simply deleting the image in the header view and pasting a new one, Word may retain the original watermark's hidden specifications and restore it upon saving.

To permanently change it, you must replace the image using the dedicated Watermark tool.

Open the Design tab

Open your document in Word for Mac and navigate to the 'Design' tab located on the top ribbon.

Access Watermark settings

Click on the 'Watermark' button to open the background watermark settings window.

Select the new picture

Choose the 'Picture' option, then click 'Select Picture' to browse your Mac for the new replacement image.

Apply and Save

Confirm your selection and apply the new watermark. Save your document and reopen it to verify the new image is retained.

Replace the Image via the Watermark Menu

Formatting Retained: Replacing the image directly through the Watermark menu preserves the scale, washout, and positioning settings of the original background image.

Solution 2

Completely Remove the Watermark Before Inserting a New Header Image

Use this method if you want to switch from using a background watermark to using a standard picture in your header.

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Try WPS Office for Mac for Seamless Document Editing

If you are tired of unexpected formatting errors and complex settings in Word for Mac, consider switching to WPS Office. It provides an intuitive, user-friendly interface for managing headers, footers, and watermarks without the frustration of reverted saves.

Highly compatible with Microsoft Word (.docx) formatsIntuitive and predictable header, footer, and watermark managementFree, lightweight, and optimized for macOS devicesFamiliar tabbed interface making migration seamless

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Frequently Asked Questions

Why does my header image keep reverting to the old one after I save in Word for Mac?

This happens when the original image was inserted as a document watermark. Word retains the hidden watermark configuration in the background, which overwrites your manual header edits when the file is saved and reopened.

How do I know if an image is a watermark or a regular header picture?

If you double-click the header area and cannot easily click, move, or delete the image, or if it appears faded behind your text across multiple pages, it is highly likely a watermark configured through the Design tab.

Can I edit the transparency of my replacement watermark in Word?

Yes. When you go to Design > Watermark and select your new picture, you can check or uncheck the 'Washout' option to adjust how faded the image appears behind your document text.

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