PDFsharp & MigraDoc Foundation

PDFsharp - A .NET library for processing PDF & MigraDoc Foundation - Creating documents on the fly
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PostPosted: Mon Aug 27, 2018 11:38 am 
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Joined: Mon Aug 27, 2018 11:02 am
Posts: 5
Hi guys,

I'm using PdfSharp in my project - it's cool and fast, that's why I choose it! Thank you!

Would you be kind to help me with next problem:
I use the PdfSharp library to read and process uploaded by user PDF documents. From time to time, there are documents which are cannot be opened by PdfSharp library, but can be easily be opened by any PDF reader (viewer).

I've prepared a small console app, please find it in attachment (InvalidEntryInXrefTable.zip), the userd PdfSharp version is "1.50.4845-RC2a"
It's also contains an example of the PDF document inside.

Looking forward to hearing from you

Thank you


Attachments:
InvalidEntryInXrefTable.zip [190.13 KiB]
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PostPosted: Wed Dec 19, 2018 12:44 pm 
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Joined: Mon Aug 27, 2018 11:02 am
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Hi guys,

would you be kind to comment the issue?
Do you have any plans for that?

I've found the similar one here viewtopic.php?f=2&t=3856&p=11995#p11995


Looking forward to hearing from you.


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PostPosted: Wed Dec 19, 2018 3:50 pm 
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Joined: Sat Mar 14, 2015 10:15 am
Posts: 909
Location: CCAA
PDFsharp was not built to deal with corrupt PDF files.

Which error message do you get from PDFsharp?

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Thomas
(Freelance Software Developer with several years of MigraDoc/PDFsharp experience)


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PostPosted: Thu Dec 20, 2018 9:33 am 
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Joined: Mon Aug 27, 2018 11:02 am
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Hi Thomas,

thank you for the answer.

The error message example is next: Invalid entry in XRef table, ID=45, Generation=0, Position=0, ID of referenced object=6, Generation of referenced object=0

Looking forward to hearing from you


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PostPosted: Thu Dec 20, 2018 12:48 pm 
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Joined: Sat Mar 14, 2015 10:15 am
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Iurii wrote:
Invalid entry in XRef table, ID=45, Generation=0, Position=0, ID of referenced object=6, Generation of referenced object=0
So the file is corrupt. And PDFsharp was not made to fix corrupt files, it was made to modify intact files.

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Thomas
(Freelance Software Developer with several years of MigraDoc/PDFsharp experience)


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PostPosted: Thu Dec 20, 2018 12:51 pm 
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Joined: Mon Aug 27, 2018 11:02 am
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Hi Thomas,

thank you for the information.


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