I have written several times about the method of creating and preserving digital images. I have also written about scanning old photographs as well as scanning of various printed or hand-written documents, as well as the better file formats for saving and distributing these scanned images.
A few days ago I wrote a Plus Edition article: (+) Preserving Documents Digitally. In that article, I only wrote briefly about file formats, but those few words generated several questions from newsletter readers. Today I thought I'd discuss image file formats a bit more in depth.
Today's technology allows for a selection of image file formats, including JPG, GIF, TIFF, BMP, PSD, RAW, PNG, EPS, PDF, and others in a seemingly endless alphabet soup of abbreviations and acronyms.
You can find many good reasons and bad reasons for selecting any of these file formats. However, from a genealogist's point of view, there are two significant issues to deal with: image size and image compression.
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