您能告诉我如何嵌入 PDF/X 输出意图吗？当我检查预检时，我报告 PDF/X-1a:2001：PDF 文件中缺少 PDF/X 输出意图。
PDF 文件中遇到的问题：
1) PDF/X-1a:2001 : PDF/X version is not PDF/X-1a:2001
2) PDF/X-1a:2001 : PDF/X output intent is missing
3) PDF/X-1a:2001 : Document trapped flag is Unknown
4) PDF/X-1a:2001 : Text object uses invalid characters (.notdef glyphs)
地面指挥系统：
gs -dPDFX -dBATCH -dNOPAUSE -dNOOUTERSAVE \
-sProcessColorModel=DeviceCMYK -sDEVICE=pdfwrite \
-sOutputFile=GS_Test.pdf PDFA_def.ps Test.ps
PDFA_def.ps：
%!
% This is a sample prefix file for creating a PDF/A document.
% Feel free to modify entries marked with "Customize".
% This assumes an ICC profile to reside in the file (ISO Coated sb.icc),
% unless the user modifies the corresponding line below.
% Define entries in the document Info dictionary :
/ICCProfile (/usr/share/ghostscript/9.07/iccprofiles/ISOcoated_v2_300_eci.icc) % Customize.
def
[ /Title (Title) % Customize.
/DOCINFO pdfmark
% Define an ICC profile :
[/_objdef {icc_PDFA} /type /stream /OBJ pdfmark
[{icc_PDFA} <</N systemdict /ProcessColorModel get /DeviceGray eq {1} {4} ifelse >> /PUT pdfmark
[{icc_PDFA} ICCProfile (r) file /PUT pdfmark
% Define the output intent dictionary :
[/_objdef {OutputIntent_PDFA} /type /dict /OBJ pdfmark
[{OutputIntent_PDFA} <<
/Type /OutputIntent % Must be so (the standard requires).
/S /GTS_PDFA1 % Must be so (the standard requires).
/DestOutputProfile {icc_PDFA} % Must be so (see above).
/OutputConditionIdentifier (ISO Coated v2 300% (ECI)) % Customize
/PUT pdfmark
[{Catalog} <</OutputIntents [ {OutputIntent_PDFA} ]>> /PUT pdfmark
In your gs命令，您正在指定 PDF-A 定义文件PDFA_def.ps。您需要指定 PDF-X 定义文件。
提供了创建 PDF-X/3 文档的详细说明here http://svn.ghostscript.com/ghostscript/trunk/gs/doc/Ps2pdf.htm#PDFX.
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