I used the crop tool to crop my indent to get rid of some of the background so that I could enlarge it without the indent interfering with the credit block.

I selected the line tool in word.

I pasted it onto serif drawplus x5

I increased the size of the line.

And changed the colour to black.

I copied and pasted it then covered the other edges of my indent.

When I had finished, I exported the image as a jpeg.