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What’sthedifferencebetweenPDF/X-1aandPDF/X-4?Itsnamestandsfor"PortableDocumentFormatExchange,"emphasizingitsfocusondata-rich documentsharingThepurposeofPDF/XistofacilitategraphicsexchangeviaPDFsoftware,anditthereforehasaseriesofprintingrelatedrequirementsthatdo notapplytostandardPDFfilesButthetwostandardsaddressdifferentneeds/desiresPDF/XisaspecializedsubsetofthewidelyusedPortableDocument Format(PDF)WhichPDF/XshouldIuse?PDF/Xiscommonlyusedbygraphicdesigners,publishersandprintingexpertsForexample,inPDF/X-1aallfonts needtobeembeddedandallimagesneedtobeCMYKorspotcolorsBothareISOstandardsthatdeliberatelyrestrictsomeaspectsofwhatyoucanputintoa PDFfileinordertomakethemmorereliablefordeliveryofjobsforprofessionalprintBothareISOPDF/XisanISOstandardpublishedinwithasubsetofPDF functionality–PDFAssociationThepurposeofPDF/Xistofacilitategraphicsexchange,anditthereforehasa, WhatisPDF/X?Thesefilessupporttheuseof graphicinformationsuchasimages,fontsandcolourprofilesandhelpensurethatnomodificationstakeplaceduringprintingWhichPDF/XshouldIuse?What doesPDF/Xstandfor?APDF/XfileisavariantoftheclassicPDFfileformat,speciallydesignedtoenablegraphicsexchangeandmeetspecificneedsforprinting andpublishingIncludedinthisstandardaretransparencyandoptionalcontentPDF/XisanumbrellatermforseveralISOstandardsthatdefineasubsetofthe PDFstandardItisdesignedspecificallyforhigh-qualitygraphicsexchange,printing,andpublishingPDF/XwasthefirstISOstandardbasedonPDFtechnology ThestandardwasestablishedandpublishedbasedonspecificrequirementsoftheprintingPortableDocumentFormat(PDF),standardizedasISO,isafileformat developedbyAdobeintopresentdocuments,includingtextformattingandimages,inamannerFig(a)MLspectraoftheCa1xSrGa4OxTb3+(theML emissionpeakoftheCa1x4OxTb3+,lem=nm,FN,acrylicpenasadirect-actingmedium,anPDF/XisasubsetoftheISOstandardforPDFThepurpose ofPDF/Xistofacilitategraphicsexchange,anditthereforehasaseriesofprinting-relatedrequirementswhichdonotapplytostandardPDFfiles.Themeaningof PDF/Xis“portabledocumentformatexchange”PDF/X–isISOisallaboutsupportingcolor-managed,CMYK,gray,RBG,orspotcolordataAsubsetofthe PDFspecification,PDF/XwasdesignedtoenablePDFfilesWhat’sthedifferencebetweenPDF/X-1aandPDF/X-4?Forexample,inPDF/X-1aallfontsneed tobeembeddedandallimagesneedtobeCMYKorspotcolorsWhatisaPDF/Xfile?