Another thought: PCs support many different picture formats. JPEG is great for, oh, 98% of the content on the web. But this is a classical case where one of the larger, lossless formats like GIF would be more appropriate. Looking at the printing per your previous post, I noticed many JPEG artifacts around the light-dark edges. These make the analysis of the type you suggested more difficult.
All true. From a forger’s perspective, a digital camera that spits out JPEG is ideal because it makes our analysis job harder. If it is a digital photo of a genuine document, the person taking it may not have or know about lossless options.