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| Header Checksum illegal on valid pdf https://forum.pdfsharp.net/viewtopic.php?f=3&t=3276 |
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| Author: | MJLaukala [ Wed Jan 20, 2016 8:34 pm ] | ||
| Post subject: | Header Checksum illegal on valid pdf | ||
I keep getting exceptions on certain pdfs that I am trying to open with PDFSharp. The file does open in adobe and closes without prompting for a resave so it seems to be a valid pdf. Attached is an IssueSubmission project that reproduces this exception.
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| Author: | Thomas Hoevel [ Thu Jan 21, 2016 2:42 pm ] |
| Post subject: | Re: Header Checksum illegal on valid pdf |
Thanks for your submission. MJLaukala wrote: The file does open in adobe and closes without prompting for a resave so it seems to be a valid pdf. The header checksum is not valid according to RFC 1950.I don't know how Adobe Reader decompresses this block (object 4 0 in your file). Maybe it does not decompress it and ignores it instead. I don't see a simple fix for this issue. Maybe the CompatiblePdfReader workaround will help in this case: viewtopic.php?p=5855#p5855 |
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