How to resize a picture whith change in paper size.

Hi mik bennett,

Welcome to Microsoft Q&A forum.

Thanks a lot for your question. It is absolutely possible in Microsoft Word to change the paper size and have your A4-sized image automatically scale to fit the new page width while maintaining its aspect ratio, but it requires a few manual steps. Let me guide you through the steps to do it:

Step-by-Step Instructions:

Change the Paper Size

• Go to Layout (or Page Layout) tab.
• Click Size > choose your desired paper size (e.g., Letter, Legal, A5, Custom Size, etc.).

Select the Picture

Click once on the picture to select it.

Set the Picture Width to Page Width

• With the picture selected, go to the Picture Format tab.
• In the Size group (usually on the right), ensure the “Lock aspect ratio” checkbox is checked:
• Right-click the image > Size and Position > Under Size, make sure Lock aspect ratio is checked.
• Then, manually adjust the width of the picture to match the new printable width of your paper.

How to know the Printable Page Width:

The printable width = page width minus margins.

Example:

• For A4: Page width = 21 cm. If left/right margins = 2 cm, then printable width = 17 cm. So you’d set the image width to 17 cm.

To check or change margins:

Go to Layout > Margins, and either choose a preset or use Custom Margins.

Hope this helps. Feel free to get back if you have other questions.

Best regards, 

Kai Ho | Microsoft Q&A Support Specialist 

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Hi mik bennett,

Is there any update on this thread?  

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Thanks for your understanding. 

Hi mik bennett,

Just checking in to see if the above information was helpful.  

If you have any further updates on this issue, please feel free to post back.  

If you think my reply is helpful to you, please remember to mark it as an answer.

Warm thanks. 

Kai Ho | Microsoft Q&A Support Specialist