The optimal printing resolution for quality images is 300 DPI, or Dots Per Inch. Lower quality images result from a lower number of dots per inch in your image, and require less memory space.
One trick to resolution is; what you begin with determines the end quality of the image, so if you scan a 4x6 image at 300 DPI, you cannot increase the size without decreasing your DPI and lowering your resolution. Always remember; increasing image size, decreases resolution. The good news is if you decrease the size of your original image, you increase your resolution. The image quality is dependent on the resolution you start with and keep when preparing your files. If you take a photograph at optimal resolution and maintain that resolution, you will see the best results.
- Recommended final image size scanned at 300 DPI
- Always scan larger if you are unsure of the final printing size
- Do not scan over 200% of the original image size
- Set your camera at the highest DPI image quality setting
- To get the correct resolution find the pixel dimension that your camera imports.
- For example an image that imports at 2304 x 1720 at 72 DPI the size will be 32x24 inches. (2304/72=32 and 1720/72=24)
- To find out what the largest image size would be at optimal resolution divide your pixel dimension by 300. Using the same pixel dimension as above results in 7.68 x 5.76 at 300 DPI. (2304/300=7.68 and 1728/300=5.76)
- Carefully check the resolution, image size, and the file size of the images you are downloading from stock photo websites
- Images directly from the web usually have a resolution around 72 DPI and are not optimal for printing
- Do not add resolution to a web image it will result in lower quality images
To ensure your printing is a success and your high quality images are crisp and clear make resolution your top priority! If you have any questions on image resolution or other file requirements, please give us a call at 800-995-1555.