While India is likely the source of much of the cotton found in canvas fabric, Indian cotton cultivators usually send their unprocessed crops to China for finishing. Though some forms of canvas do not contain cotton, China is also the world’s largest producer of linen and industrial hemp fibe...
The problem with sampling up (enlarging) is that you will lose image quality. The larger you make it, the more quality you will lose. If you need to scale the image down (reduce) then the quality loss isn’t so much as issue, although you may need to sharpen an image if you shrink...