I have several old postcards that were printed from black and white photos. I want to scan these images and reprint them in A4 size. However, my initial attempts to scan them result in a very pixelated scan image, even though the original image seems to have a high resolution.

what are the recommended scanner settings to ensure the best quality reproduction of these b&w postcard photos?

Thanks

Simon

What you are seeing is called a 'moire' pattern caused by the scanner resolution interfering with the screen-printing system used to create the postcards.

If you scanner software has a 'de-screen' option, turn it on

what scanner are you using ? friend bought a HP k209a and there are settings to scan the pics to B&W