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FAQs

Q. Can I freely download images from NPM Open Data?
A. Yes, images may be freely downloaded so long as they are used for educational purposes, under our specified terms of use, and are properly cited.
Q. Can I print or publish images for free in books or other periodicals?
A. Permission must be obtained from NPM before printing or publishing these images.
Q. What is the format of the image files?
A. Images are downloaded as JPEG files, sized no greater than 1MB, and watermarked with the NPM seal.
Q. What is the format of the artifact information attached to the image file?
A. The artifact information downloaded with the artifact image would be in a basic text file.
Q. Why does not the artifact image that I downloaded look like an image?
A. To make it easier for users to differentiate between the artifact image and information, the two have been compressed into a zip file for download. To see the image, users need only decompress the zip file.
Q. After I open the numerical data or nominal data dataset, why does the content show up unreadable?
A. Numerical or nominal data is collected from large amounts of data and then converted to xml code for download. It is meant to be read by machines or processed by programs; it is not as suitable for individual browsing.
Q. Will the content on NPM Open Data increase in the future?
A. We will occasionally increase the images and datasets available for download on NPM Open Data.
Q. What are related file formats of the datasets available on this site?
A. The datasets are primarily in xml, which we have compressed into RAR files for easier download. The text portion supports Unicode.