Hi Man,
Please take note that Microsoft Picture Manager is not supported in Office 2013 or later. You can resize the photos in Windows 10 by editing them using Paint. To resize a photo in Paint, follow these steps:
- Right-click a photo, and then click Edit. The photo will open in Paint.
- In Paint, click Resize.
- Under Resize, you can choose if you want to resize the photo by Percentage or Pixel.
- Once you've chosen how you will resize the photo, you can edit the values of Horizontal and Vertical. If you want to fully customize the size of the photo, you can uncheck the Maintain aspect ratio check box.
- After customizing the values of Horizontal and Vertical, click OK.
- Click the floppy disk icon on the upper left part of Paint to save the changes.
Another way to edit a photo in Paint is by using the Select tool. To do this, follow these steps:
- Open a photo using paint,
- In Paint, adjust the canvas of your picture to the size you want. You can adjust the canvass by clicking and dragging on the small box around the picture.
- Once you've adjusted you canvass, click the Select tool.
- Select the whole image. Make sure that you exactly select the image.
- After selecting the image, click and drag the small box around the picture to resize it. Make sure that size the canvass and the image is the same.
- After editing the size of the picture or image, click the floppy disk icon on the upper left part of Paint to save the changes.
Should you need further assistance, kindly reply to this thread.