Newspaper contains about 4% lignin. Therefore, yellowing and brittleness of the newspaper paper will eventually occur. However, since the percentage of lignin is low, newspaper will preserve for many years before this deterioration process begins to occur. To further slow this process, use Mylar or page protectors to protect the newspaper from the outside elements.
When scanning a drawing into your computer it will always load as a bitmap image, (a bit like a photograph in a newspaper). This can be sent directly to a stamp manufacturer as long as it is a black and white scan and the line thicknesses do not fall below the minimum. If the lines are too thin you can convert the bitmap image into vector data by applying a trace to the image. Programs that have tracing ability place a vector line around the lines or can be set to follow the lines, these lines can then have a thickness applied to make them suitable for rubber stamp making.
One of the best things that you will find out about DesignStitch is that their clip art is ready to digitize for embroidery and screen printing immediately. There are numerous other things that you can do with the clipart that you purchase as well. You can use the images for your website or T-shirt printing among other things. Furthermore, you can find , artwork to digitize and sell like embroidery machine format.