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Geospatial PDF is a set of geospatial extensions to the Portable Document Format (PDF) that relate a region in the document page to a region in physical space. The establishment of this relationship is a process of georeferencing. The georeferencing metadata for geospatial PDF is most commonly encoded in one of two ways: the OGC best practice; and as Adobe's proposed geospatial extensions to ISO 32000. Features commonly associated with geospatial PDF are simply features of PDF: * the ability to graphically represent vector and raster information (content and imaging model PDF 1.0) * the separation of graphics content into different layers (optional content PDF 1.5) * the association of tabular information with graphical features (user properties PDF 1.6) However, in combination with the georeferencing metadata, geospatial PDF is a compelling mechanism for the dissemination of geospatial information and intelligence. TerraGo pioneered the georeferencing of PDF files with their GeoPDF-branded map and imagery products produced from their software applications, although a TerraGo GeoPDF and a geospatial PDF are not entirely the same thing. GeoPDF products originally used the OGC best practice to encode the georeferencing metadata, but after the release of the Adobe extensions may contain either the Adobe or OGC encodings. ISO 32000-2 (PDF 2.0), currently under development, will incorporate geospatial PDF features. == Applications creating geospatial PDFs == * (ACD Canvas 16 w/ GIS ) * Adobe Acrobat Professional Extended * Asseco (LIDS ) * Avenza MAPublisher * Avenza Geographic Imager * BAE Socet GXP (via TerraGo Publisher for Socet GXP) * Bentley Microstation * Cadcorp SIS * Exelis ENVI * ERDAS IMAGINE (via TerraGo Publisher for IMAGINE) * ESRI ArcGIS * (Geospatial Data Abstraction Library (GDAL) ) * Global Mapper * i-cubed DataDoors * Intergraph GeoMedia (via TerraGo Publisher for GeoMedia) * Pitney Bowes MapInfo Professional * Safe Software Feature Manipulation Engine * GeoEye Analytics EarthWhere * TerraGo Composer * TerraGo Publisher for ArcGIS * TerraGo Publisher for Raster * CARIS Bathy DataBASE 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Geospatial PDF」の詳細全文を読む スポンサード リンク
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