The Authenticated PDF is a file containing a high-resolution scan of a photogram. It has the digital signature of the Institute, which certifies its official status. Each file includes all the identifying metadata of the aerial photogram (year of flight, strip-run number, photogram number and reference sheet 1:100,000).
💡 Note: By purchasing this product, you will always be provided with the file in non-photogrammetric TIFF format together with the signed PDF.
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