What image file format is commonly used for large raster files when saving photographs intended for print?

The choice of TIFF as the correct answer is rooted in its widespread use in professional photography and printing due to its capability to handle large raster files while retaining high image quality. TIFF, or Tagged Image File Format, supports lossless compression, which means it retains all the details and nuances of the image without compromising quality. This is particularly advantageous when working with photographs that will be printed, as maintaining the integrity of the image is crucial for high-quality results.

Moreover, TIFF files are versatile and support multiple layers and channels of color, allowing photographers and graphic designers to manage complex images effectively. This format is also compatible with various software programs commonly used in the printing process, making it a preferred choice in the industry.

While other file formats like PDF may be used for print, they serve different purposes such as document distribution and are not always optimal for maintaining image fidelity. Similarly, RAW files are specific to camera manufacturers and are mainly used during the editing and post-processing stage rather than being a final output format for print. Thus, TIFF's qualities make it an ideal choice for producing high-quality prints from large raster images.