ghostscript: elide overprinting to fix PDF/A errors in GS 9.20

It looks like GS 9.19 can incorrectly set overprinting for the text layer even though this makes no sense in PDF/A, or at least someone produced PDFs that have this after a Tesseract PDF -> GS PDF/A conversion. GS 9.20 complains about this. Instead of aborting, elide the feature. See http://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=094d5a1880f1cb9ed320ca9353eb69436e09b594 and issue #107. It looks like it is better to elide features and warn about elision rather than abort with an error.
2016-11-10 14:48:02 -08:00
parent eecab9b95d
commit 23c95e9660
1 changed files with 1 additions and 1 deletions
@@ -56,7 +56,7 @@ def generate_pdfa(pdf_pages, output_file, threads=1):
            "-sProcessColorModel=DeviceRGB",
            "-dJPEGQ=95",
            "-dPDFA=2",
-            "-sPDFACompatibilityPolicy=2",
+            "-sPDFACompatibilityPolicy=1",
            "-sOutputFile=" + gs_pdf.name,
        ]
        args_gs.extend(pdf_pages)