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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hello list, <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I am just wondering if anybody has any experience with this—<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I want to convert USGS Topos to Geotiff using GDAL. My command below seems to work well in general: <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='background:white'>gdalwarp C:\JIANTestFolder\geo.pdf C:\JIANTestFolder\geo.tif -crop_to_cutline -cutline C:\JIANTestFolder\cutline.csv -overwrite --config GDAL_CACHEMAX 500 -wm 500 --config GDAL_PDF_LAYERS "ALL" --config GDAL_PDF_LAYERS_OFF Images.Orthoimage --config GDAL_PDF_DPI 250 -co "TILED=YES" -co "TFW=YES" -co "COMPRESS=JPEG" –co "PHOTOMETRIC=YCBCR"<o:p></o:p></span></p><p class=MsoNormal><span style='background:white'><o:p> </o:p></span></p><p class=MsoNormal><span style='background:white'>Except for some files: <o:p></o:p></span></p><p class=MsoNormal>WI_Madison_West_20100723_TM_geo.pdf (http://ims.er.usgs.gov/gda_services/download?item_id=5222418)<o:p></o:p></p><p class=MsoNormal>IL_Metropolis_20101018_TM_geo.pdf<o:p></o:p></p><p class=MsoNormal>LA_Union_Springs_20100930_TM_geo.pdf<o:p></o:p></p><p class=MsoNormal>ND_Lehr_20110324_TM_geo.pdf<o:p></o:p></p><p class=MsoNormal>TX_Panola_20100312_TM_geo.pdf<o:p></o:p></p><p class=MsoNormal>…….<o:p></o:p></p><p class=MsoNormal>……<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>For some reason, the Orthoimage layer cannot be turned off for these files. I’ve noticed these might be the early versions of the new generation USGS topos (for example, the 2013 Madison one works well with the command). Also I found people with similar issue here: <o:p></o:p></p><p class=MsoNormal><a href="http://gis.stackexchange.com/questions/88988/gdal-conversion-of-us-topo-geopdfs">http://gis.stackexchange.com/questions/88988/gdal-conversion-of-us-topo-geopdfs</a><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>So I was wondering: <o:p></o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='mso-list:Ignore'>1.<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>Why this is happening? “Bad” file format in the earlier versions? <o:p></o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='mso-list:Ignore'>2.<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]> For these files, separating orthoimage from others is not doable at all or there might be other workaround? <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thank you in advance for any insight you want to share. I much appreciate any suggestions/comments. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Best regards, <o:p></o:p></p><p class=MsoNormal>Jian Liu<o:p></o:p></p></div></body></html>