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https://issues.apache.org/jira/browse/PDFBOX-3136?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15032266#comment-15032266
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Tilman Hausherr commented on PDFBOX-3136:
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http://www.pdf-tools.com/pdf/validate-pdfa-online.aspx
Validating file "PDFBOX-3136-preflight.pdf" for conformance level pdfa-1a
Error in Flate stream: data error.
The document does not conform to the requested standard.
The document doesn't conform to the PDF reference (missing required entries,
wrong value types, etc.).
Done.
So I'd say we're correct.
> False negative on PDF/A-1A with wrongly given causes " Invalid graphics
> object, DestOutputProfile isn't a valid ICCProfile: Invalid ICC Profile Data"
> and "Invalid Color space, The operator "rg" can't be used with CMYK Profile"
> ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: PDFBOX-3136
> URL: https://issues.apache.org/jira/browse/PDFBOX-3136
> Project: PDFBox
> Issue Type: Bug
> Components: Preflight
> Affects Versions: 2.0.0
> Reporter: Antoine Ribes
> Attachments: test_little-A1a.pdf
>
>
> Using the code of the CookBook for PDF/A validation (given for 1.8.10) :
> - with the test_little-A1a.pdf file (Adobe preflight (and pdfbox:1.8.10)
> tells me it's a valid PDF/A-1A)
> - and only replacing the code "parser.parse()" with
> "parser.parse(Format.PDF_A1A)",
> result.isValid() is false with version 2.0.0-RC2. Displayed results errors
> are :
> - 2.1.4 - Invalid graphics object, DestOutputProfile isn't a valid
> ICCProfile: Invalid ICC Profile Data
> - 2.1.4 - Invalid graphics object, DestOutputProfile isn't a valid
> ICCProfile. Caused by : Invalid ICC Profile Data
> - 2.4.1 - Invalid Color space, The operator "rg" can't be used with CMYK
> Profile
> Some log is displayed :
> WARN [org.apache.pdfbox.filter.FlateFilter] - FlateFilter: premature end of
> stream due to a DataFormatException
> DEBUG [org.apache.pdfbox.io.ScratchFileBuffer] - ScratchFileBuffer not closed!
> WARN [org.apache.pdfbox.filter.FlateFilter] - FlateFilter: premature end of
> stream due to a DataFormatException
> Note : Running same code with the pdfbox and preflight version 2.0.0-RC1 on
> the same file, I get the exception :
> org.apache.pdfbox.preflight.exception.ValidationException: Unable to parse
> the ICC Profile.
> at
> org.apache.pdfbox.preflight.process.CatalogValidationProcess.validateICCProfile(CatalogValidationProcess.java:383)
> at
> org.apache.pdfbox.preflight.process.CatalogValidationProcess.validateOutputIntent(CatalogValidationProcess.java:285)
> at
> org.apache.pdfbox.preflight.process.CatalogValidationProcess.validate(CatalogValidationProcess.java:148)
> at
> org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:84)
> at
> org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:122)
> at
> org.apache.pdfbox.preflight.PreflightDocument.validate(PreflightDocument.java:163)
> [...]
> Caused by: java.io.IOException: java.util.zip.DataFormatException: incorrect
> data check
> at org.apache.pdfbox.filter.FlateFilter.decode(FlateFilter.java:83)
> at org.apache.pdfbox.cos.COSInputStream.create(COSInputStream.java:69)
> at org.apache.pdfbox.cos.COSStream.createInputStream(COSStream.java:163)
> at
> org.apache.pdfbox.preflight.process.CatalogValidationProcess.validateICCProfile(CatalogValidationProcess.java:360)
> ... 29 more
> Caused by: java.util.zip.DataFormatException: incorrect data check
> at java.util.zip.Inflater.inflateBytes(Native Method)
> And a similar result as with 2.0.0-RC2 is obtained with 1.8.8.
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