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https://issues.apache.org/jira/browse/PDFBOX-3336?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tilman Hausherr updated PDFBOX-3336:
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Attachment: document_type_2_signed-TILMAN.pdf
document_type_2_signed-TILMAN.pdf is the document signed by me. Adobe Reader
does not show the signature. PDFBox shows it, as do two other tools. GSView has
a bug:
{code}
GSview 5.0 2012-01-17
GPL Ghostscript 9.14 (2014-03-26)
Copyright (C) 2014 Artifex Software, Inc. All rights reserved.
This software comes with NO WARRANTY: see the file PUBLIC for details.
Scanning PDF file
**** Warning: An error occurred while reading an XREF table.
**** The file has been damaged. This may have been caused
**** by a problem while converting or transfering the file.
**** Ghostscript will attempt to recover the data.
**** Warning: There are objects with matching object and generation
**** numbers. The accuracy of the resulting image is unknown.
**** Error: Trailer is not found.
%GSVIEW_PDF_PAGES: 1 0
Displaying PDF page 1
%GSVIEW_PDF_PAGE: 1
Error: /rangecheck in --get--
Operand stack:
1 --nostringval-- 0
Execution stack:
%interp_exit .runexec2 --nostringval-- --nostringval--
--nostringval-- 2 %stopped_push --nostringval-- --nostringval-- false
1 %stopped_push 1950 1 3 %oparray_pop 1949 1 3 %oparray_pop
1933 1 3 %oparray_pop 1819 1 3 %oparray_pop --nostringval--
%errorexec_pop .runexec2 --nostringval-- --nostringval--
--nostringval-- 2 %stopped_push --nostringval-- --nostringval--
--nostringval--
Dictionary stack:
--dict:1193/1684(ro)(G)-- --dict:1/20(G)-- --dict:86/200(L)--
--dict:114/127(ro)(G)-- --dict:280/300(ro)(G)-- --dict:27/32(L)--
Current allocation mode is local
pdf_page_init failed
{code}
> several errors in the incremental save
> --------------------------------------
>
> Key: PDFBOX-3336
> URL: https://issues.apache.org/jira/browse/PDFBOX-3336
> Project: PDFBox
> Issue Type: Bug
> Components: AcroForm, Signing
> Affects Versions: 2.0.1
> Environment: JDK8
> Reporter: Marco Monacelli
> Priority: Blocker
> Attachments: append_by_pdf_box_no_signature.txt, document_type_2.pdf,
> document_type_2_signed-TILMAN.pdf
>
>
> We have several mistakes in pdf signature.
> 1) Some PDF ar not signed but no error is arised
> 2) Others contain the signature but acrobat reader does not show it .
> The documents of the first type are confidential and we can only provide the
> information appendend by pdfbox to the original PDF.
> For the second case we will provide you the original document .
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