Why do spreadsheets look bad when I Ctrl+V them into an image editor?

[mathgrant]

I run a blog with both PDF files and images of puzzles. They used to look nice, but ever since I upgraded LibreOffice, they look ugly, and I have no clue what version of LibreOffice I was using before. I’ll try downgrading to 5.4.5 and see if that makes things better.

Here’s a section of the grid image for my Wordy Wednesday 208 as exported via Ctrl+V in LibreOffice 6.0.2.1:

The corners look really ugly.

The exact same image, as exported via Ctrl+V in my old LibreOffice:

The corners are more rounded and nice.

For your experimentation, the ODT file: Dropbox - WW208-anacrossword15.odt - Simplify your life

[Ratslinger]

Hello,

Can’t seem to duplicate your posted view. Using the provided sample (Writer not Calc document) copied the image & loaded into Gimp (Gimp view is at 800%):

Saved as .png and got:

Then using Calc, just created some cells with borders, did Ctrl+C, Ctrl+V in Gimp producing (again at 800%):

This was done on Mint 18.3 using LO v6.0.2.1