| -----Original Message----- | From: Brent Fraser | Sent: Friday, February 06, 2009 11:54 AM | | The part I'm grappling with is the geospatial bit. | | <Here's some background for others reading this:> Terrago's GeoPDF | encodes the spatial reference system information required for the | geospatial bit in PDF tags linked to PDF frames (page regions). I | think. | </>
That's pretty close. I'm starting a series of blog posts that explain what we do and contrast the differences in what was sent to OGC and what Adobe does, the first of which is at: http://geopdf.blogspot.com/2009/02/geopdf-and-georegistration.html | I'd like to add geospatial information to PDFs (using frames and tags | looks like an elegant approach), but I can't find an Open Source PDF | library that does frames and tags. What we do with the serialization of the geospatial payload isn't very tricky and shouldn't require any fancy library for creating new PDF files. However, modifying existing files is a different matter... | And I'd prefer to be compatible with Terrago's GeoPDF (and now Adobe's too?). Today, both Acrobat/Reader 9 and TerraGo software grok either georegistration method's payload. | For those interested in Adobe's method, read pages 49 to 54 of | http://www.adobe.com/devnet/acrobat/pdfs/adobe_supplement_iso32000.pdf For folks interested in creating geospatial PDF files, this is the one you want. | Brent Fraser G -- George Demmy, PhD | Director, Product Management TerraGo Technologies w: 678.391.9620 m: 404.574.3878 The information contained in this email may be confidential and/or legally privileged. It has been sent for the sole use of the intended recipient(s). If the reader of this message is not an intended recipient, you are hereby notified that any unauthorized review, use, disclosure, dissemination, distribution, or copying of this communication, or any of its contents, is strictly prohibited. If you have received this communication in error, please contact the sender by reply email and destroy all copies of the original message. Thank you. _______________________________________________ Geowanking mailing list [email protected] http://geowanking.org/mailman/listinfo/geowanking_geowanking.org
