We are using PDFSharp 6.1.0-preview-1 on Docker with alphine linux, we create a pdf by combining a few existing pdf files , then use ghostscript to further compress the pdf files, when we upgraded we seem to be getting an error even though the pdf is compressed and created... Attached is a Sample PDF created on windows using PDFSharp, and another though word and saved as PDF, and the command we are using in docker (linux) to compress this file is:
gs -o "compressed.pdf" -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/ebook -dEmbedAllFonts=false -dSubsetFonts=true -f "Sample.pdf"
The error we get when trying to compress the PDFSharp PDF is:
/tmp $ gs -o "compressed.pdf" -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/ebook -dEmbedAllFonts=false -dSubsetFonts=true -f "Sample.pdf"
GPL Ghostscript 10.02.0 (2023-09-13)
Copyright (C) 2023 Artifex Software, Inc. All rights reserved.
This software is supplied under the GNU AGPLv3 and comes with NO WARRANTY:
see the file COPYING for details.
Processing pages 1 through 8.
Page 1
warning: ignoring zlib error: incorrect data check
Page 2
warning: ignoring zlib error: incorrect data check
Page 3
warning: ignoring zlib error: incorrect data check
Page 4
warning: ignoring zlib error: incorrect data check
Page 5
warning: ignoring zlib error: incorrect data check
Page 6
warning: ignoring zlib error: incorrect data check
Page 7
warning: ignoring zlib error: incorrect data check
Page 8
warning: ignoring zlib error: incorrect data check
When we run the other pdf file through this conversion it works:
/tmp $ gs -o "compressed.pdf" -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/ebook -f "Sample_Other.pdf"
GPL Ghostscript 10.02.0 (2023-09-13)
Copyright (C) 2023 Artifex Software, Inc. All rights reserved.
This software is supplied under the GNU AGPLv3 and comes with NO WARRANTY:
see the file COPYING for details.
Processing pages 1 through 4.
Page 1
Page 2
Page 3
Page 4
Just wanted to find out if this could be anything within the created pdf structure that is causing this?
| Attachments: |
Sample_PDF.zip [148.38 KiB]
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