Black poop can be harmless, caused by certain foods or medications, or it can be a sign of melena, meaning there’s blood in your stool. Melena happens when bleeding occurs in the upper digestive tract ...

You need to draw over the area you want to erase, select apply and paint will take care of it. Finally, the third option is background removal, which allows you to remove the background from the ...

The TiO 2 is the important part; it changes color when heated by the laser, forming a deep black line that adheres ... and blast away. Vector files work better than raster files, and you’ll ...