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Scanning Resolution, Scaling, File Size

Get a great scan by understanding scanning resolution, bit depth, file formats and sizes, and scaling options. Use the right scanning resolution to match the intended use for scanning images and text.

Measuring SPI: Image Resolution
Explore SPI or Samples per inch, the measure of resolution of scanning images.

Pick Your Scanning Resolution
How to choose the right resolution at which to scan images.

Scanning Resolution Calculator
Let this calculator do the math for you and tell you the best resolutioon for your scan based on size and printing specifications.

Optical vs. Interpolated Resolution
The resolution of your scans starts with the resolution of your scanner.

Interpolated Resolution
Graphics Software Guide Sue Chastain defines interpolation and explains interpolated resolution.

Scanning 101
These creativepro.com charts show minumum and maximum scanning resolutions. Discusses oversampling.

Out of Memory Problems
See how scanning resolution affects memory usage while scanning or using scanned images. From Wayne Fulton.

Printing Resolution
What is scaling? What is resampling? Wayne Fulton explains.

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