It depends on the size of the page. At 300 ppi (Pixels Per Inch, not DPI or Dots Per Inch) you image will print at 6.4˝ × 4.6˝. If that is the size of your page then you are gold. If you need it to be larger you will either need a larger image or have to accept lower than 300 pixel per inch output resolution. Scaling the image up will make the pixels larger, making the resolution lower. If enlarged to 11˝ x 8.5˝ the resolution will be 161 pixels per inch.
File size is not always a reflection of image quality or image size. Several file formats support compression, which will reduce the size of an . For some images the compression will be great. Uncompressed, your image contains about 7.9 MB of data. If saved as a TIF with LZW or ZIP compression or as PNG the file size will be smaller. How much smaller depends on the type of image. A photograph will not compress much, maybe 50%. A floorplan, logo, simple illustration, or map can much more without any loss in quality. JPEG compression can be dramatic and reduce any image size to a fraction of it's uncompressed size, sometimes with no loss in quality. But JPEG is called “lossy” compression, meaning some data is altered to achieve high compression, which will permanently affect the image.
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